* docs: fix README.md typo
- change "For a example" to "For an example"
* docs: fix grammar errors in documentation
- read and write permissions。 to read and write permissions.
* docs: fix grammatical error in addon writing guide
- **docs/pages/addons/write.md**: Changed "Write a Addon" to "Write an Addon" in title
* docs: fix grammatical error in third-party integration guide
- **docs/pages/guide/third-party/index.md**: Changed "in a article" to "in an article"
* docs: fix "This is a example" to "This is an example"
* docs: fix spelling "archieved" to "achieved" in why.md