Update README.md (#919)

Fixed typo

README.md

@@ -25,7 +25,7 @@ Features
 
 * **Automatic, smoothly scrolling table of contents** on the far left of the page. As you scroll, it displays your current position in the document. It's fast, too. We're using Slate at TripIt to build documentation for our new API, where our table of contents has over 180 entries. We've made sure that the performance remains excellent, even for larger documents.
 
-* **Let your users update your documentation for you** — By default, your Slate-generated documentation is hosted in a public GitHub repository. Not only does this mean you get free hosting for your docs with GitHub Pages, but it also makes it simple for other developers to make pull requests to your docs if they find typos or other problems. Of course, if you don't want to use ], you're also welcome to host your docs elsewhere.
+* **Let your users update your documentation for you** — By default, your Slate-generated documentation is hosted in a public GitHub repository. Not only does this mean you get free hosting for your docs with GitHub Pages, but it also makes it simple for other developers to make pull requests to your docs if they find typos or other problems. Of course, if you don't want to use GitHub, you're also welcome to host your docs elsewhere.
 
 * **RTL Support** Full right-to-left layout for RTL languages such as Arabic, Persian (Farsi), Hebrew etc.