Fix documentation of the release process (facebook#12337)

* Adusted grammar in release script readme.

* Adjusts title and explanation about the release process.

Author: FlXlT

scripts/release/README.md

@@ -1,13 +1,13 @@
-# React Release Script
+# React Release Scripts
 
-At a high-level, the release script runs in 2 passes: **build** and **publish**.
-1. The **build** script does the heavy lifting (eg checking CI, running automated tests, building Rollup bundles) and then prints instructions for manual verification.
-1. The **publish** script then publishes the built artifacts to NPM and pushes to GitHub.
+At a high-level, the release process uses two scripts: **build** and **publish**.
+1. The **build** script does the heavy lifting (e.g., checking CI, running automated tests, building Rollup bundles) and then prints instructions for manual verification.
+1. The **publish** script then publishes the built artifacts to npm and pushes to GitHub.
 
-Run either script without parameters to see its usage, eg:
+Run either script without parameters to see its usage, e.g.:
 ```
 ./scripts/release/build.js
 ./scripts/release/publish.js
 ```
 
-Each script will guide the release engineer through any necessary steps (including environment setup and manual testing steps).
+Each script will guide the release engineer through any necessary steps (including environment setup and manual testing steps).