Correct spelling and grammar mistakes

Author: cmdumar

pages/docs/react/latest/introduction.mdx

@@ -6,11 +6,11 @@ canonical: "/docs/react/latest/introduction"
 
 # ReScript & React
 
-ReScript offers first class bindings for [ReactJS](https://reactjs.org) and are designed and built by people using ReScript and React in large mission critical React codebases. The bindings are compatible with modern React versions (>= v16.8).
+ReScript offers first class bindings for [ReactJS](https://reactjs.org) and is designed and built by people using ReScript and React in large mission critical React codebases. The bindings are compatible with modern React versions (>= v16.8).
 
-The ReScript philosophy is to compile as closely to idiomatic JS code as possible; in case of ReactJS we made no exception, so it's not only easy to transfer all the React knowledge to the ReScript platform, but also straightorward to integrate with existing ReactJS codebases and libraries.
+The ReScript philosophy is to compile as closely to idiomatic JS code as possible; in the case of ReactJS, we made no exception, so it's not only easy to transfer all the React knowledge to the ReScript platform, but also straightforward to integrate with existing ReactJS codebases and libraries.
 
-All our documentated examples can be compiled in our [ReScript Playground](/try) as well.
+All our documented examples can be compiled in our [ReScript Playground](/try) as well.
 
 ## Feature Overview