update docs (#97)

To reflect incremental delivery support

README.md

@@ -51,7 +51,7 @@ GraphQL Executor provides:
 1. A way to fork the GraphQL.JS executor without introducing multiple versions of
    `graphql-js` into your project. `graphql-executor` is a smart fork of only the `execution` module of `graphql-js`. You can safely fork `graphql-executor` to customize your execution flow as needed.
 2. A code-only method of customizing the executor by subclassing the exported internal `Executor` class as above.
-3. Direct benefits from our own customizations! GraphQL Executor is spec-compliant, but aims to support experimental features (such as `@defer`/`@stream` support) and provide other improvements as possible. See (https://github.com/yaacovCR/graphql-executor/releases) to track any new features.
+3. Direct benefits from our own customizations! GraphQL Executor is spec-compliant, but also supports experimental features (such as `@defer`/`@stream` support) and provide other improvements as possible. See (https://github.com/yaacovCR/graphql-executor/releases) to track any new features.
 
 ### The Long Version