Pensieve: add the GNU Emacs page.

Author: paveloom

content/pensieve/gnu-emacs.md

@@ -0,0 +1,11 @@
+# GNU Emacs
+
+GNU Emacs is a free software text editor. It was created by GNU Project founder Richard Stallman, based on the Emacs editor developed for Unix operating systems. GNU Emacs has been a central component of the GNU project and a flagship project of the free software movement. Its tag line is "the extensible self-documenting text editor."
+
+Read more on [Wikipedia](https://en.wikipedia.org/wiki/GNU_Emacs).
+
+#### Sites
+- [GNU Emacs](https://www.gnu.org/software/emacs) ⭐
+
+#### Resources
+- [2023] [From Zero To IDE with Emacs and LSP](https://justinbarclay.ca/posts/from-zero-to-ide-with-emacs-and-lsp)

content/pensieve/text-editors.md

@@ -3,6 +3,7 @@
 A text editor is a type of computer program that edits plain text. Text editors are provided with operating systems and software development packages, and can be used to change files such as configuration files, documentation files and programming language source code.
 
 #### Examples
+- [GNU Emacs](gnu-emacs.md) ⭐
 - [Helix](helix.md) ⭐
 - [Kakoune](https://kakoune.org)
 - [Lite](https://github.com/rxi/lite)

content/sitemap.md

@@ -121,6 +121,7 @@ search:
                         - [`fish`](pensieve/fish.md)
                     - [Terminal emulators](pensieve/terminal-emulators.md)
                 - [Text editors](pensieve/text-editors.md)
+                    - [GNU Emacs](pensieve/gnu-emacs.md)
                     - [Helix](pensieve/helix.md)
                     - [Neovim](pensieve/neovim.md)
                 - [Tools](pensieve/tools.md)