[Core] Add a language to every code block (#39212)

Co-authored-by: Peter Bengtsson <mail@peterbe.com>

content/get-started/getting-started-with-git/configuring-git-to-handle-line-endings.md

@@ -77,7 +77,7 @@ A `.gitattributes` file looks like a table with two columns:
 
 Here's an example `.gitattributes` file. You can use it as a template for your repositories:
 
-```
+```text
 # Set the default behavior, in case people don't have core.autocrlf set.
 * text=auto