<!-- Click "Preview" for a more readable version --

If you found an area that needs clarification, feel free to open a PR or list the section/content that could be improved below

Don't remove any title of the issue template, or it will be treated as invalid by the bot.

⚠️👆 Feel free to refer to these instructions before submitting the issue 👆⚠️
-->

#### Section/Content To Improve
https://github.com/axios/axios/blob/master/CHANGELOG.md

#### Suggested Improvement
Please add 0.21.1 to the Changelog.

#### Relevant File(s)
https://github.com/axios/axios/blob/master/CHANGELOG.md
dist/axios.js
return encodeURIComponent(val).
	    replace(/%3A/gi, ':').
	    replace(/%24/g, '$').
	    replace(/%2C/gi, ',').
	    replace(/%20/g, '+').
	    replace(/%5B/gi, '[').
	    replace(/%5D/gi, ']');
	}
	
	/**
	 * Build a URL by appending params to the end
	 *