servo: Merge #2733 - Fix typo (from tavva:fix-typo)

Source-Repo: https://github.com/servo/servo
Source-Revision: 9bdfdd3ada26f7f2c4547c16f18d39cd3e39f693

servo/src/README.md

@@ -39,7 +39,7 @@ they are designed to be useful in other Rust projects.
 * `support/stb-image`: A minimalist image decoding library. This is a temporary stopgap for image
   decoding until a higher-performance solution is available.
 
-## Platform-specfic bindings
+## Platform-specific bindings
 
 ### Linux