Update track-history.mdx

Author: Ashnayak

src/content/docs/terraform/tutorial/track-history.mdx

@@ -93,7 +93,7 @@ Plan: 0 to add, 1 to change, 0 to destroy.
 ```
 
 ## 2. Store configuration in GitHub
-Create a .gitignore file with these contents:
+Create a `.gitignore` file with these contents:
 ```text
 .terraform/
 *.tfstate*