message: [TechDocs] Add link to how-to guide
diff: @@ -10,4 +10,4 @@ http://backstage.io/docs/features/techdocs/configuration
  ### TechDocs Storage Api
  -The default setup of TechDocs assumes your documentation is accessed by reading a page with the format of `<storageUrl>/<entity kind>/<entity namespace>/<entity name>`. If for some reason you want to change this it can be configured by implementing a new techdocs storage API. Do this by implementing TechDocsStorage found in `plugins/techdocs/src/api`. Add your new API to the application in `app/src/apis.ts` (or replace if it's already registered as an API).
  +The default setup of TechDocs assumes your documentation is accessed by reading a page with the format of `<storageUrl>/<entity kind>/<entity namespace>/<entity name>`. If for some reason you want to change this it can be configured by [implementing a new techdocs storage API](https://backstage.io/docs/features/techdocs/how-to-guides#how-to-implement-your-own-techdocs-apis).
  