Added `helpful' layer, removed commented out require, fixed function

`helpful' is a layer that aims to provide better help buffers, and I
prefer it to Emacs’ default help mode.

I also removed the commented out `org-tempo' require as I don’t
actually need commented out code, especially this one.

I also fixed the function `terminal-here-launch' by specifying the
name of the external terminal to call.

.spacemacs

@@ -80,6 +80,7 @@ This function should only modify configuration layer settings."
      (helm :variables
            helm-no-header t
            helm-use-fuzzy 'source)
+     helpful
      (html :variables
            web-fmt-tool 'web-beautify
            css-enable-lsp t
@@ -605,7 +606,7 @@ If you are unsure, try setting them in `dotspacemacs/user-config' first."
   (require 'package)
   (require 'ox-latex)
   (require 'ox-publish)
-  (require 'org-tempo)
+  ;; (require 'org-tempo)
   (require 'dap-lldb)
   (require 'dap-firefox)
 
@@ -629,6 +630,11 @@ configuration.
 Put your configuration code here, except for variables that should be set
 biefore packages are loaded."
 
+  (defun load-config (FILE)
+    "Loads specified org file as EmacsLisp configuration file."
+    (interactive)
+    (org-babel-load-file FILE))
+
   ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
                                         ;           Custom functions          ;
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
@@ -673,6 +679,9 @@ of strings."
                                         ;                 Misc                ;
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
+  (defun terminal-here-default-terminal-command (_dir)
+    '("st"))
+
   (setq x86-lookup-pdf "~/Documents/code/asm/Intelx86/325383-sdm-vol-2abcd.pdf"
         evil-want-C-u-scroll nil
         asm-comment-char ?\#
@@ -1246,7 +1255,7 @@ This function is called at the very end of Spacemacs initialization."
    '(org-export-headline-levels 4)
    '(package-selected-packages
      (quote
-    (dired-du org-sidebar dap-mode bui tree-mode xkcd vmd-mode visual-fill-column typit mmt sudoku restclient-helm pony-mode pacmacs ox-reveal outorg ob-restclient ob-http meson-mode ibuffer-projectile lv helm-w3m w3m graphviz-dot-mode flycheck-gometalinter transient ess-smart-equals ess-R-data-view ctable ess julia-mode eshell-git-prompt emoji-cheat-sheet-plus edit-indirect dockerfile-mode docker docker-tramp company-restclient restclient know-your-http-well company-quickhelp company-emoji company-emacs-eclim eclim atomic-chrome websocket 2048-game ox-gfm slime-company slime common-lisp-snippets erlang insert-shebang fish-mode company-shell faceup racket-mode treepy graphql yapfify yaml-mode xterm-color web-beautify twittering-mode toml-mode tagedit stickyfunc-enhance smeargle slim-mode shell-pop selectric-mode scss-mode sass-mode ranger rainbow-identifiers pytest pyenv-mode py-isort pug-mode plantuml-mode phpunit phpcbf php-auto-yasnippets pdf-tools tablist ox-pandoc orgit org-present org-pomodoro alert log4e gntp ob-elixir multi-term markdown-toc magit-gitflow magit-gh-pulls livid-mode live-py-mode json-snatcher js2-refactor js-doc htmlize hlint-refactor hindent helm-pydoc helm-hoogle helm-gitignore helm-css-scss haskell-snippets haml-mode gnuplot glsl-mode gitignore-mode github-search github-clone github-browse-file gitconfig-mode gitattributes-mode git-messenger gist gh marshal logito pcache ht gh-md flyspell-correct-helm flyspell-correct flycheck-rust pos-tip flycheck-mix flycheck-credo eshell-z eshell-prompt-extras esh-help drupal-mode disaster cython-mode dash-functional tern company-ghci company-ghc ghc color-identifiers-mode cmm-mode clang-format cargo auto-dictionary alchemist modern-cpp-font-lock yasnippet-snippets x86-lookup web-mode srefactor racer pyvenv pip-requirements pandoc-mode org-projectile org-category-capture org-mime org-download nasm-mode json-reformat intero imenu-list hy-mode git-timemachine git-link geiser flycheck-pos-tip flycheck-haskell evil-magit emmet-mode cmake-mode anaconda-mode rust-mode elixir-mode flycheck haskell-mode multiple-cursors skewer-mode simple-httpd markdown-mode magit magit-popup git-commit ghub with-editor pythonic emms gmail-message-mode ham-mode html-to-markdown flymd edit-server image-dired+ go-guru go-eldoc company-go go-mode unfill mwim company-web web-completion-data company-tern company-cabal company-c-headers company-auctex company-anaconda elcord xresources-theme sql-indent rainbow-mode php-extras php-mode mmm-mode json-mode js2-mode csv-mode coffee-mode auctex helm-company helm-c-yasnippet fuzzy company-statistics company auto-yasnippet yasnippet ac-ispell auto-complete ws-butler winum which-key volatile-highlights vi-tilde-fringe uuidgen use-package toc-org spaceline powerline restart-emacs request rainbow-delimiters popwin persp-mode pcre2el paradox spinner org-plus-contrib org-bullets open-junk-file neotree move-text macrostep lorem-ipsum linum-relative link-hint indent-guide hydra hungry-delete hl-todo highlight-parentheses highlight-numbers parent-mode highlight-indentation helm-themes helm-swoop helm-projectile helm-mode-manager helm-make projectile pkg-info epl helm-flx helm-descbinds helm-ag google-translate golden-ratio flx-ido flx fill-column-indicator fancy-battery eyebrowse expand-region exec-path-from-shell evil-visualstar evil-visual-mark-mode evil-unimpaired evil-tutor evil-surround evil-search-highlight-persist evil-numbers evil-nerd-commenter evil-mc evil-matchit evil-lisp-state smartparens evil-indent-plus evil-iedit-state iedit evil-exchange evil-escape evil-ediff evil-args evil-anzu anzu evil goto-chg undo-tree eval-sexp-fu highlight elisp-slime-nav dumb-jump f dash s diminish define-word column-enforce-mode clean-aindent-mode bind-map bind-key auto-highlight-symbol auto-compile packed aggressive-indent adaptive-wrap ace-window ace-link ace-jump-helm-line helm avy helm-core popup async)))
+      (helpful elisp-refs loop xkcd vmd-mode visual-fill-column typit mmt sudoku restclient-helm pony-mode pacmacs ox-reveal outorg ob-restclient ob-http meson-mode ibuffer-projectile lv helm-w3m w3m graphviz-dot-mode flycheck-gometalinter transient ess-smart-equals ess-R-data-view ctable ess julia-mode eshell-git-prompt emoji-cheat-sheet-plus edit-indirect dockerfile-mode docker docker-tramp company-restclient restclient know-your-http-well company-quickhelp company-emoji company-emacs-eclim eclim atomic-chrome websocket 2048-game ox-gfm slime-company slime common-lisp-snippets erlang insert-shebang fish-mode company-shell faceup racket-mode treepy graphql yapfify yaml-mode xterm-color web-beautify twittering-mode toml-mode tagedit stickyfunc-enhance smeargle slim-mode shell-pop selectric-mode scss-mode sass-mode ranger rainbow-identifiers pytest pyenv-mode py-isort pug-mode plantuml-mode phpunit phpcbf php-auto-yasnippets pdf-tools tablist ox-pandoc orgit org-present org-pomodoro alert log4e gntp ob-elixir multi-term markdown-toc magit-gitflow magit-gh-pulls livid-mode live-py-mode json-snatcher js2-refactor js-doc htmlize hlint-refactor hindent helm-pydoc helm-hoogle helm-gitignore helm-css-scss haskell-snippets haml-mode gnuplot glsl-mode gitignore-mode github-search github-clone github-browse-file gitconfig-mode gitattributes-mode git-messenger gist gh marshal logito pcache ht gh-md flyspell-correct-helm flyspell-correct flycheck-rust pos-tip flycheck-mix flycheck-credo eshell-z eshell-prompt-extras esh-help drupal-mode disaster cython-mode dash-functional tern company-ghci company-ghc ghc color-identifiers-mode cmm-mode clang-format cargo auto-dictionary alchemist modern-cpp-font-lock yasnippet-snippets x86-lookup web-mode srefactor racer pyvenv pip-requirements pandoc-mode org-projectile org-category-capture org-mime org-download nasm-mode json-reformat intero imenu-list hy-mode git-timemachine git-link geiser flycheck-pos-tip flycheck-haskell evil-magit emmet-mode cmake-mode anaconda-mode rust-mode elixir-mode flycheck haskell-mode multiple-cursors skewer-mode simple-httpd markdown-mode magit magit-popup git-commit ghub with-editor pythonic emms gmail-message-mode ham-mode html-to-markdown flymd edit-server image-dired+ go-guru go-eldoc company-go go-mode unfill mwim company-web web-completion-data company-tern company-cabal company-c-headers company-auctex company-anaconda elcord xresources-theme sql-indent rainbow-mode php-extras php-mode mmm-mode json-mode js2-mode csv-mode coffee-mode auctex helm-company helm-c-yasnippet fuzzy company-statistics company auto-yasnippet yasnippet ac-ispell auto-complete ws-butler winum which-key volatile-highlights vi-tilde-fringe uuidgen use-package toc-org spaceline powerline restart-emacs request rainbow-delimiters popwin persp-mode pcre2el paradox spinner org-plus-contrib org-bullets open-junk-file neotree move-text macrostep lorem-ipsum linum-relative link-hint indent-guide hydra hungry-delete hl-todo highlight-parentheses highlight-numbers parent-mode highlight-indentation helm-themes helm-swoop helm-projectile helm-mode-manager helm-make projectile pkg-info epl helm-flx helm-descbinds helm-ag google-translate golden-ratio flx-ido flx fill-column-indicator fancy-battery eyebrowse expand-region exec-path-from-shell evil-visualstar evil-visual-mark-mode evil-unimpaired evil-tutor evil-surround evil-search-highlight-persist evil-numbers evil-nerd-commenter evil-mc evil-matchit evil-lisp-state smartparens evil-indent-plus evil-iedit-state iedit evil-exchange evil-escape evil-ediff evil-args evil-anzu anzu evil goto-chg undo-tree eval-sexp-fu highlight elisp-slime-nav dumb-jump f dash s diminish define-word column-enforce-mode clean-aindent-mode bind-map bind-key auto-highlight-symbol auto-compile packed aggressive-indent adaptive-wrap ace-window ace-link ace-jump-helm-line helm avy helm-core popup async)))
    '(pdf-view-midnight-colors (quote ("#655370" . "#fbf8ef")))
    '(safe-local-variable-values
      (quote