Clean up

examples/webgl_points_waves.html

@@ -62,7 +62,7 @@
 
 			void main() {
 
-       			if ( length( gl_PointCoord - vec2( 0.5, 0.5 ) ) > 0.475 ) discard;
+				if ( length( gl_PointCoord - vec2( 0.5, 0.5 ) ) > 0.475 ) discard;
 
 				gl_FragColor = vec4( color, 1.0 );