Fix spelling mistake in readme

README.md

@@ -64,7 +64,7 @@ nvgFill(vg);
 - make sure you have initialised OpenGL with stencil buffer
 - make sure you have cleared stencil buffer
 - make sure all rendering calls happen between `nvgBeginFrame()` and `nvgEndFrame()`
-- to eanble more checks for OpenGL errors, add `NVG_DEBUG` flag to `nvgCreatexxx()`
+- to enable more checks for OpenGL errors, add `NVG_DEBUG` flag to `nvgCreatexxx()`
 - if the problem still persists, please report an issue!
 
 ## OpenGL state touched by the backend