[Emacs, org] Update references to Spacemacs, pages title

Update some references to Emacs as references to Spacemacs

Update title of Spacemacs configuration

org/config/sitemap.org

@@ -2,15 +2,15 @@
 
 - [[file:bootstrap.org][Arch Linux, Phundrak-flavored]]
 - [[file:awesome.org][AwesomeWM configuration]]
-- [[file:emacs.org][Emacs Configuration]]
 - [[file:bin.org][Executable scripts]]
 - [[file:fish.org][Fish config]]
-- [[file:neofetch.org][Neofetch configuration (WIP)]]
+- [[file:neofetch.org][Neofetch configuration]]
 - [[file:index.org][Phundrak’s dotfiles]]
 - [[file:picom.org][Picom (Compton) Configuration]]
 - [[file:rustfmt.org][Rust format config]]
 - [[file:spacemacs.org][Spacemacs Configuration]]
 - [[file:tmux.org][Tmux config]]
+- [[file:emacs.org][Vanilla Emacs Configuration]]
 - Deprecated
   - [[file:Deprecated/nano.org][Nano configuration]]
   - [[file:Deprecated/polybar.org][Polybar config]]

org/config/spacemacs.org

@@ -1,23 +1,24 @@
 # -*- org-confirm-babel-evaluate: nil  -*-
-#+title: Emacs Configuration
+#+title: Spacemacs Configuration
 #+setupfile: headers
 #+OPTIONS: auto-id:t
-#+HTML_HEAD_EXTRA: <meta name="description" content="Phundrak’s Emacs Configuration" />
-#+HTML_HEAD_EXTRA: <meta property="og:title" content="Phundrak’s Emacs Configuration" />
-#+HTML_HEAD_EXTRA: <meta property="og:description" content="Phundrak’s Emacs Configuration Detailed" />
+#+HTML_HEAD_EXTRA: <meta name="description" content="Phundrak’s Spacemacs Configuration" />
+#+HTML_HEAD_EXTRA: <meta property="og:title" content="Phundrak’s Spacemacs Configuration" />
+#+HTML_HEAD_EXTRA: <meta property="og:description" content="Phundrak’s Spacemacs Configuration Detailed" />
 #+PROPERTY: header-args: :mkdirp yes :lexical t
 
 * Introduction
 :PROPERTIES:
 :CUSTOM_ID: Introduction-f1cbb8bb
 :END:
-This file is the main source file for my Emacs configuration which contains most
-of the user code. It is exported thanks to Emacs’ code tangling from the
-original Org file which you can find on my dotfiles’ repository[fn:1] if you are
-reading the web version of it. You can also find there my ~.spacemacs~[fn:2] and
-its code which isn’t part of the present file. As you can see in my
-~.spacemacs~, at init-time, if Emacs detects the tangled configuration files are
-older than the Org file, then Emacs tangles them again, and then loads them.
+This file is the main source file for my Spacemacs configuration which
+contains most of the user code. It is exported thanks to Emacs’ code
+tangling from the original Org file which you can find on my dotfiles’
+repository[fn:1] if you are reading the web version of it. You can
+also find there my ~.spacemacs~[fn:2] and its code which isn’t part of
+the present file. As you can see in my ~.spacemacs~, at init-time, if
+Emacs detects the tangled configuration files are older than the Org
+file, then Emacs tangles them again, and then loads them.
 
 * Spacemacs layers and packages
 :PROPERTIES: