docs: small fixes for guides using the start command (#3799)

docs/content/development/endpoints/example-logged-in-user.md

@@ -190,4 +190,4 @@ Then, run your backend with the following command:
 npm run start
 ```
 
-If you try accessing the endpoints you added the middleware to, you should see your implementation working as expected.
+If you try accessing the endpoints you added the middleware to, you should see your implementation working as expected.