Merge pull request #477 from erlang-ls/gitpod

[#470] Theia IDE documentation and GitPod configuration

.gitpod.yml

@@ -0,0 +1,5 @@
+image: erlang:22.2.7
+
+vscode:
+  extensions:
+    - [email protected]

README.md

@@ -192,6 +192,18 @@ Look for the `erlang-ls` extension and install it. That's it.
 Remember that the Erlang Language Server requires Erlang/OTP 21 or
 higher to run, so ensure that OTP 21+ is available in your `PATH`.
 
+#### Theia IDE
+
+It is possible to use Erlang LS in Theia IDE by including Erlang/OTP
+in your running instance and installing the
+[VSCode extension](https://marketplace.visualstudio.com/items?itemName=erlang-ls.erlang-ls).
+
+If you want to give it a try by using GitPod click
+[here](https://gitpod.io/#https://github.com/erlang-ls/erlang_ls).
+To use this same setup with your Erlang project (hosted in GitHub or
+Gitlab) you can find the GitPod configuration in
+[`.gitpod.yml`](https://github.com/erlang-ls/erlang_ls/blob/master/.gitpod.yml).
+
 ### Sublime Text 3 Setup
 
 Using the _Command Palette_, select `Package Control: Install Package`
@@ -338,7 +350,6 @@ you should see the message that Coc has connected to it:
 For suggestions on configuring Coc see its [example configuration
 documentation](https://github.com/neoclide/coc.nvim#example-vim-configuration).
 
-
 ## Features
 
 This section summarizes the functionalities currently implemented by
@@ -454,7 +465,7 @@ And you can connect to it via:
 The [redbug](https://github.com/massemanet/redbug) application is
 included in _debug mode_, so feel free to use it.
 
-## The `erlang_ls` Database
+### The `erlang_ls` Database
 
 The `erlang_ls` language server uses
 [Mnesia](https://erlang.org/doc/man/mnesia.html) to persist