Update rotate_vector.hpp

glm/gtx/rotate_vector.hpp

@@ -87,7 +87,7 @@ namespace glm
 		vec<3, T, P> const & v,
 		T const & angle);
 		
-	//! Rotate a four dimentionnals vector around the X axis.
+	//! Rotate a four dimensional vector around the X axis.
 	//! From GLM_GTX_rotate_vector extension.
 	template<typename T, precision P>
 	GLM_FUNC_DECL vec<4, T, P> rotateX(