[DOCS][CODE]: Add GO as a supported language server (#47550) (#47870)

* [DOCS] Fix beta tag in Code Docs

* Add additional content about cloning repos

* More grammar edits

* Address Gail's feedback.

* Fix build errors

* Another build fix

* [DOCS][CODE]: Add GO as a supported language server

* Update code-install-lang-server.asciidoc

docs/code/code-install-lang-server.asciidoc

@@ -1,7 +1,7 @@
 [[code-install-lang-server]]
 == Install language server
 
-*Code* comes with built-in language support for TypeScript. You can install additional languages as a {kib} plugin.
+*Code* comes with built-in language support for TypeScript. You can install additional languages as a {kib} plugin. Plugin's reduce the distribution size to run Code inside {kib}. Install only the languages needed for your indexed repositories. 
 
 [role="screenshot"]
 image::images/code-lang-server-tab.png[]
@@ -9,6 +9,7 @@ image::images/code-lang-server-tab.png[]
 For the current version, *Code* supports the following languages in addition to TypeScript:
 
 * `Java`
+* `GO`
 
 You can check the status of the language servers and get installation instructions on the *Language Servers* tab.  Make sure the status of the language server is `INSTALLED` or `RUNNING` after you restart the {kib} instance.
 [role="screenshot"]