Automated developer guide update

Author: schutzbot

docs/bootc/index.md

@@ -271,7 +271,7 @@ As an example, let's show how you can add a user to the image:
 
 Firstly create a file `./config.toml` and put the following content into it:
 
-```json
+```toml
 [[customizations.user]]
 name = "alice"
 password = "bob"

docs/developer-guide/02-projects/image-builder-frontend/index.md

@@ -117,7 +117,7 @@ import { FOOBAR_API } from '../constants';
 // initialize an empty api service that we'll inject endpoints into later as needed
 export const emptyFoobarApi = createApi({
   reducerPath: 'foobarApi',
-  baseQuery: fetchBaseQuery({ baseUrl: FOO_BAR }),
+  baseQuery: fetchBaseQuery({ baseUrl: window.location.origin + FOO_BAR }),
   endpoints: () => ({}),
 });
 ```