Fix more typos in sources and docs (#5681)

examples/example_emscripten_wgpu/main.cpp

@@ -166,7 +166,7 @@ static void main_loop(void* window)
     if (show_demo_window)
         ImGui::ShowDemoWindow(&show_demo_window);
 
-    // 2. Show a simple window that we create ourselves. We use a Begin/End pair to created a named window.
+    // 2. Show a simple window that we create ourselves. We use a Begin/End pair to create a named window.
     {
         static float f = 0.0f;
         static int counter = 0;