Merge pull request #17 from streger/patch-1

Couple of typos

README.md

@@ -56,7 +56,7 @@ ReactDOM.render(<Button>Button</Button>, mountNode);
 
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-### Documentaion
+### Documentation
 
 You can go through [full documentation][rsuite-doc-guide] or start with following sections
 
@@ -84,7 +84,7 @@ If you like RSUITE, you can show your support by either
 
 - Starring this repo
 - [Leaving a comment here][issues-11] if you are using RSUITE in your project (like we do :smile:)
-- [Becomiong a backer][opencollective-home] on OpenCollective
+- [Becoming a backer][opencollective-home] on OpenCollective
 
 [![opencollective-now][opencollective-svg]][opencollective-home]