Update README.md

Grammar Mistake Solve

Author: jayupadhyay01

README.md

@@ -144,7 +144,7 @@ wp maintenance release-notes [<repo>] [<milestone>...] [--source=<source>] [--fo
 
 	[<milestone>...]
 		Name of one or more milestones to fetch the release notes for. If none
-		are passed, the current open one is assumed.
+		are passed, the currently open one is assumed.
 
 	[--source=<source>]
 		Choose source from where to copy content.
@@ -195,7 +195,7 @@ We appreciate you taking the initiative to contribute to this project.
 
 Contributing isn’t limited to just code. We encourage you to contribute in the way that best fits your abilities, by writing tutorials, giving a demo at your local meetup, helping other users with their support questions, or revising our documentation.
 
-For a more thorough introduction, [check out WP-CLI's guide to contributing](https://make.wordpress.org/cli/handbook/contributing/). This package follows those policy and guidelines.
+For a more thorough introduction, [check out WP-CLI's guide to contributing](https://make.wordpress.org/cli/handbook/contributing/). This package follows those policies and guidelines.
 
 ### Reporting a bug
 
@@ -209,7 +209,7 @@ Once you’ve done a bit of searching and discovered there isn’t an open or fi
 
 Want to contribute a new feature? Please first [open a new issue](https://github.com/wp-cli/wp-cli-dev/issues/new) to discuss whether the feature is a good fit for the project.
 
-Once you've decided to commit the time to seeing your pull request through, [please follow our guidelines for creating a pull request](https://make.wordpress.org/cli/handbook/pull-requests/) to make sure it's a pleasant experience. See "[Setting up](https://make.wordpress.org/cli/handbook/pull-requests/#setting-up)" for details specific to working on this package locally.
+Once you've decided to commit the time to see your pull request through, [please follow our guidelines for creating a pull request](https://make.wordpress.org/cli/handbook/pull-requests/) to make sure it's a pleasant experience. See "[Setting up](https://make.wordpress.org/cli/handbook/pull-requests/#setting-up)" for details specific to working on this package locally.
 
 ## Support