message: Remove old section from Graphcache readme
diff: @@ -59,16 +59,6 @@ const client = createClient({
  });
  ```
  -## Features and Roadmap
  -
  -- [x] Normalized resolving and updates
  -- [x] Schema awareness and deterministic fragment matching
  -- [x] Partial query results when the cache is schema aware
  -- [x] Customization using custom resolvers, updates, and keying functions
  -- [x] Optimistic updates
  -- [ ] Basic offline and persistence support
  -- [ ] Advanced fragment and entity invalidation
  -
  ## Maintenance Status
  **Active:** Formidable is actively working on this project, and we expect to continue for work for the foreseeable future. Bug reports, feature requests and pull requests are welcome.
  