[docs] Fix grammar issues in Babel plugin unwrap-createstyles (#18856)

Author: RDIL

packages/babel-plugin-unwrap-createstyles/README.md

@@ -1,14 +1,14 @@
 ## Motivation
 
-We write our demos in TS but want to offer the same demos to JS users.
+We write our demos in TS, but want to offer the same demos to JS users.
 Maintaining two versions of the demos is hard and therefore we simply transpile
-the TS demos with babel to JS.
+the TS demos with Babel into JS.
 
-However we have some TS only utility functions that are essentially identity function
-with no side-effects whos only purpose is to defeat type widening. These add noise
-to the JS files and bundle size for everyone.
+However, we have some TS-only utility functions that are essentially identity function
+with no side-effects, with the sole purpose being to defeat type widening.
+Without it, noise is added to the JS files and bundle size for everyone.
 
-This plugin unwraps them
+This plugin unwraps them.
 
 ## Recognized patterns
 
@@ -20,6 +20,8 @@ const styles = () => createStyles({});
 export default withStyles(styles)(Component);
 ```
 
+would be changed to:
+
 ```js
 import { withStyles } from '@material-ui/core/styles';
 
@@ -35,9 +37,9 @@ It works also with the `@material-ui/styles` package.
 - default import from `createStyles`
 - aliased imports
 
-## Why not as a typescript transformer?
+## Why not a TypeScript transformer?
 
-Face these issues in chronological order
-1. no config API i.e. transformers are only supported for programmatic transpilation/compilation
-2. since we need to pipe prettier we might as well use a programmatic approach so back to transformer
-3. typescript does not preserve blanklines (Microsoft/TypeScript#843) back to babel plugins
+We face these issues (in chronological order):
+1. no config API (i.e. transformers are only supported for programmatic transpilation/compilation)
+2. since we need to pipe Prettier, we might as well use a programmatic approach so back to transformer
+3. TypeScript does not send blanklines (Microsoft/TypeScript#843) back to Babel plugins