[docs] Add 'LaTeX in Gitpod' tutorial based on https://github.com/ptrottier/latex

Author: jankeromnes

src/docs/languages-and-frameworks.md

@@ -15,5 +15,6 @@ Below is a list of language and framework specific tips & tricks.
 - [Rust](/docs/languages/rust/)
 - [.NET](/docs/languages/dotnet/)
 - [Julia](/docs/languages/julia/)
+- [LaTeX](/docs/languages/latex/)
 - [R](/docs/languages/r/)
 - [Pandas](/docs/frameworks/pandas)

src/docs/languages/latex.md

@@ -0,0 +1,95 @@
+# LaTeX in Gitpod
+
+This tutorial will demonstrate how to configure Gitpod to work with [LaTeX](https://www.latex-project.org/) files. You can find a complete [example repository](https://github.com/ptrottier/latex) at the end.
+
+## Installing LaTeX
+
+First, you will probably want to install LaTeX in Gitpod. To do this, add a new file to your repository called [.gitpod.Dockerfile](https://www.gitpod.io/docs/config-docker/), and add the following content to it:
+
+```Dockerfile
+FROM gitpod/workspace-full
+
+# Install LaTeX
+RUN sudo apt-get -q update && \
+    sudo apt-get install -yq texlive-full && \
+    sudo rm -rf /var/lib/apt/lists/*
+```
+
+Next, create a file called [.gitpod.yml](https://www.gitpod.io/docs/config-gitpod-file/) and add the following to it:
+
+```YAML
+image:
+  file: .gitpod.Dockerfile
+```
+
+Now commit both files into source control, and push them to your GitHub or GitLab repository.
+
+This will be your base configuration for LaTeX in Gitpod — from now on, every time you create a new Gitpod workspace for your repository, it will be configured as specified in your `.gitpod.yml` and `.gitpod.Dockerfile`.
+
+## Automatically compiling LaTeX files on save
+
+One way to achieve this is to install `inotify-tools` by modifying your earlier `.gitpod.Dockerfile` like so:
+
+```Dockerfile
+FROM gitpod/workspace-full
+
+# Install LaTeX
+RUN sudo apt-get -q update && \
+    sudo apt-get install -yq texlive-full inotify-tools && \
+    sudo rm -rf /var/lib/apt/lists/*
+```
+
+Next, modify your `.gitpod.yml` like so:
+
+```YAML
+image:
+  file: .gitpod.Dockerfile
+
+tasks:
+  - name: LaTeX auto-rebuild
+    command: >
+      while find . -name '*.tex' | xargs inotifywait -qqre modify .; do \
+        latexmk -pdf ; \
+      done
+  - name: Terminal
+```
+
+This will start a watcher process that automatically recompiles your `*.tex` files when they are changed. Note: The watcher process will start in a separate Terminal on every workspace start.
+
+## VSCode Extensions
+
+### TexLab
+
+This extension provides rich editing support for the LaTeX typesetting system powered by the [TexLab](https://github.com/latex-lsp/texlab-vscode) language server.
+
+To install it in Gitpod, simply download the corresponding `*.vsix` file [Open VSX](https://open-vsx.org/), and then drag-and-drop it into Gitpod's Extensions view (which can be found in the left vertical menu bar).
+
+This will automatically append something like this to your `.gitpod.yml` file:
+
+```yml
+vscode:
+  extensions:
+    - [email protected]:/Vq+k9Ug/81LYWajjTgMpA==
+```
+
+(Note: You can also append these lines yourself if you don't want to download & re-upload the `*.vsix` file.)
+
+### LaTeX Workshop
+
+Another great LaTeX extension is [LaTeX Workshop](https://github.com/James-Yu/LaTeX-Workshop):
+
+> Boost LaTeX typesetting efficiency with preview, compile, autocomplete, colorize, and more.
+
+It is also available [on Open VSX](https://open-vsx.org/extension/James-Yu/latex-workshop).
+
+### LaTeX Snippets
+
+There is also [LaTeX Snippets](https://github.com/JeffersonQin/VSCode-LaTeX-Snippets):
+
+> This extension includes a variety of snippets for LaTeX including making environments and plotting images for functions, etc.
+
+## Try it!
+
+To see a complete minimal example repository with a Gitpod configuration for LaTeX, including most of the tools we've covered, see [ptrottier/latex](https://github.com/ptrottier/latex). You can try it in your browser:
+
+[![Open in Gitpod](https://gitpod.io/button/open-in-gitpod.svg)](https://gitpod.io/#https://github.com/ptrottier/latex)

src/docs/menu.ts

@@ -145,6 +145,10 @@ export const MENU: MenuEntry[] = [
                 "Julia",
                 "languages/julia"
             ),
+            M(
+                "LaTeX",
+                "languages/latex"
+            ),
             M(
                 "R",
                 "languages/r"