fix caution box title

Author: petebacondarwin

src/content/partials/workers/secrets-in-dev.mdx

@@ -19,7 +19,7 @@ SECRET_KEY="value"
 API_TOKEN="eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9"
 ```
 
-:::caution [Do not commit secrets to git]
+:::caution[Do not commit secrets to git]
 The `.dev.vars` and `.env` files should not committed to git. Add `.dev.vars*` and `.env*` to your project's `.gitignore` file.
 :::