Fix README typo (#1451)

This PR fixes a slight typo in the README, changing `inifinite` to
`infinite` in line 14.

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- [x] `documentation` — Changes to the documentation only (will not
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Co-authored-by: Steve Ruiz <steveruizok@gmail.com>

README.md

@@ -11,7 +11,7 @@ Welcome to the public monorepo for [tldraw](https://tldraw.com).
 
 ## What is tldraw?
 
-tldraw is a collaborative digital whiteboard available at [tldraw.com](https://tldraw.com). Its editor, user interface, and other underlying libraries are open source and available in this repository. They are also distributed on npm. You can use tldraw to create a drop-in whiteboard for your product or as the foundation on which to build your own inifinite canvas applications.
+tldraw is a collaborative digital whiteboard available at [tldraw.com](https://tldraw.com). Its editor, user interface, and other underlying libraries are open source and available in this repository. They are also distributed on npm. You can use tldraw to create a drop-in whiteboard for your product or as the foundation on which to build your own infinite canvas applications.
 
 Learn more at [tldraw.dev](https://tldraw.dev).