[Emacs] Revert commit ac0e5b38ff, update gitmodules

Change gitmodules’ url, add missing information on Spacemacs git module

.gitmodules

@@ -1,15 +1,18 @@
 [submodule ".config/tmux"]
         path = .config/tmux
-	url = https://github.com/gpakosz/.tmux.git
+        url = git@github.com:gpakosz/.tmux.git
 [submodule ".config/emacs/private/conlanging"]
         path = fromGIT/emacs-packages/conlanging
-	url = https://labs.phundrak.com/phundrak/conlang-layer
+        url = git@labs.phundrak.com:phundrak/conlang-layer.git
 [submodule ".mozilla/firefox/lruehqec.default/chrome"]
         path = fromGIT/blurredfox-nord
         url = git@labs.phundrak.com:phundrak/blurredfox-nord.git
 [submodule ".emacs.d"]
-	path = .config/emacs
+        path = .emacs.d
         url = git@github.com:plexus/chemacs2.git
 [submodule ".emacs.doom"]
         path = .emacs.doom
         url = git@github.com:hlissner/doom-emacs.git
+[submodule ".emacs.spacemacs"]
+        path = .emacs.spacemacs
+        url = git@github.com:syl20bnr/spacemacs.git