message: Fix typo in normalized caching docs
diff: @@ -11,7 +11,7 @@ GraphQL deals with connected data in a tree structure, each entity may link to o
  even lists of entities, which we call "links". The scalar fields on entities like numbers, strings,
  etc is what we call "records."
  -Instead of storing query results whole documents, like `urql` does with [its default "Document
  +Instead of storing query results as whole documents, like `urql` does with [its default "Document
  Caching"](../basics/document-caching.md), _Graphcache_ flattens all data it receives automatically.
  If we looked at doing this manually on the following piece of data, we'd separate each object into a
  list of key-value entries per entity.
  