Fixed typos in README.md (#16)

* Update README.md

* Update README.md

* Update README.md

Author: ad-chaos

README.md

@@ -4,8 +4,8 @@ Manim's plugins site, simple app with js.
 
 ## Adding a Plugin
 
-Their is a Github Actions set up to run daily which will automatically add you plugin if it starts with matches this RegEx `<(.*)>manim-(?P<name>.*)<(.*)>`. If your plugin doesn't match this RegEx, then you can make a PR adding your plugin name as how it is PyPI, to `scripts/default.json` under `extras` section.
+There is a Github Actions set up to run daily which will automatically add your plugin to the website if it matches with this RegEx `<(.*)>manim-(?P<name>.*)<(.*)>`. If your plugin doesn't match this RegEx, then you can make a PR adding your plugin's name (as listed on PyPI) to `scripts/default.json` under the `extras` section.
 
 # Code of Conduct
 
-Our full code of conduct, and how we enforce it, can be read on [our website](https://docs.manim.community/en/latest/conduct.html).
+Our full code of conduct, and how we enforce it, can be read on [our website](https://docs.manim.community/en/latest/conduct.html).