added documentation for elixir language

Author: lukepistrol

Sources/CodeEditTextView/Documentation.docc/CodeLanguage.md

@@ -24,6 +24,7 @@ let language = CodeLanguage.detectLanguageFrom(url: fileURL)
 - C++
 - C#
 - CSS
+- Elixir
 - Go
 - Go Mod
 - HTML
@@ -65,6 +66,7 @@ let language = CodeLanguage.detectLanguageFrom(url: fileURL)
 - ``cpp``
 - ``cSharp``
 - ``css``
+- ``elixir``
 - ``go``
 - ``goMod``
 - ``html``

Sources/CodeEditTextView/Documentation.docc/TreeSitterModel.md

@@ -37,6 +37,7 @@ let query = TreeSitterModel.shared.swiftQuery
 - ``cppQuery``
 - ``cSharpQuery``
 - ``cssQuery``
+- ``elixirQuery``
 - ``goQuery``
 - ``goModQuery``
 - ``htmlQuery``