fix(docs): fix typo in code blocks (#2684)

Fixes code blocks in [Turborepo Codemods](https://turbo.build/repo/docs/reference/codemods#migrate-env-var-dependencies). ![Screenshot 2022-11-12 at 14 50 42](https://user-images.githubusercontent.com/11066224/201477205-1ef74176-46c7-4a57-9c58-6a7cd191c054.png)
vercel · Nov 12, 2022 · 6aff6f5 · 6aff6f5 · vercel · Nov 12, 2022
1 parent 3ffbec1
commit 6aff6f5
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/docs/pages/repo/docs/reference/codemods.mdx b/docs/pages/repo/docs/reference/codemods.mdx
@@ -149,7 +149,7 @@ For example:
 }
 ```
 
-````diff
+```diff
 // After, turbo.json
 {
   "$schema": "https://turbo.build/schema.json",
@@ -171,14 +171,15 @@ For example:
     }
   }
 }
+```
 
 #### Usage
 
 Go to your project:
 
 ```sh
 cd path-to-your-turborepo/
-````
+```
 
 Run the codemod: