fix style issues

Author: psx95

gcp-auth-extension/README.md

@@ -10,6 +10,7 @@ The extension takes care of the necessary configuration required to authenticate
 ```shell
 gcloud auth application-default login
 ```
+
 Executing this command will save your application credentials to default path which will depend on the type of machine -
 - Linux, macOS: `$HOME/.config/gcloud/application_default_credentials.json`
 - Windows: `%APPDATA%\gcloud\application_default_credentials.json`
@@ -19,6 +20,7 @@ Executing this command will save your application credentials to default path wh
 Next, export the credentials to `GOOGLE_APPLICATION_CREDENTIALS` environment variable -
 
 For Linux & MacOS:
+
 ```shell
 export GOOGLE_APPLICATION_CREDENTIALS=$HOME/.config/gcloud/application_default_credentials.json
 ```