whitespace update

Author: nickcosmo

src/content/tutorials/en/intro-to-glsl.mdx

@@ -635,7 +635,7 @@ For example, you may want to use a shape's texture coordinates in the fragment s
     // Tell WebGL where the vertex goes
     gl_Position = uProjectionMatrix * viewModelPosition;
   ${begin('assign')}
-  vTexCoord = aTexCoord;
+    vTexCoord = aTexCoord;
   ${end('assign')}
   }
 `}>