CMake project example: fix a couple of typos (#3014)

Author: benjamin-thomas

projects/CMake/core_basic_window.c

@@ -3,7 +3,7 @@
 *   raylib [core] example - Basic window (adapted for HTML5 platform)
 *
 *   This example is prepared to compile for PLATFORM_WEB, PLATFORM_DESKTOP and PLATFORM_RPI
-*   As you will notice, code structure is slightly diferent to the other examples...
+*   As you will notice, code structure is slightly different to the other examples...
 *   To compile it for PLATFORM_WEB just uncomment #define PLATFORM_WEB at beginning
 *
 *   This example has been created using raylib 1.3 (www.raylib.com)
@@ -31,7 +31,7 @@ int screenHeight = 450;
 void UpdateDrawFrame(void);     // Update and Draw one frame
 
 //----------------------------------------------------------------------------------
-// Main Enry Point
+// Main Entry Point
 //----------------------------------------------------------------------------------
 int main()
 {
@@ -80,4 +80,4 @@ void UpdateDrawFrame(void)
 
     EndDrawing();
     //----------------------------------------------------------------------------------
-}
+}