Fixed more typos

glm/glm.hpp

@@ -51,7 +51,7 @@ namespace test
 	bool main_core();
 }//namespace test
 
-/// GLM core. Namespace that includes all the feature define by GLSL 4.10.6 specification. This namespace is included in glm namespace.
+/// GLM core. Namespace that includes all the features define by GLSL 4.10.6 specification. This namespace is included in glm namespace.
 namespace core
 {
 	//! Scalar, vectors and matrices 
@@ -63,15 +63,17 @@ namespace core
 	//! Some of the functions defined in section 8 Built-in Functions of GLSL 1.30.8 specification.
 	//! Angle and trigonometry, exponential, common, geometric, matrix and vector relational functions.
 	namespace function{}
-}
+}//namespace core
-//namespace core
 
-/// G-Truc Creation stable extensions.
+//! G-Truc Creation stable extensions.
 namespace gtc{}
 
-/// G-Truc Creation experimental extensions. 
+//! G-Truc Creation experimental extensions. 
-/// The interface could change between releases.
+//! The interface could change between releases.
 namespace gtx{}
+
+//! VIRTREV extensions.
+namespace virtrev{}
 }//namespace glm
 
 #include "./core/_detail.hpp"