Fix README.md cf push instructions
@@ -37,7 +37,7 @@ To build this buildpack, run the following command from the buildpack's director
```bash
cf create-buildpack [BUILDPACK_NAME] [BUILDPACK_ZIP_FILE_PATH] 1
- cf push my_app -b [BUILDPACK_NAME]
+ cf push my_app [-b BUILDPACK_NAME]
```
### Testing
