you can now print images on the screen

shaders/basic.vert

@@ -1,11 +1,14 @@
 #version 330 core
 
 layout(location = 0) in vec3 a_position;
-layout(location = 1) in vec4 a_color;
+layout(location = 1) in vec2 a_texCoord;
+layout(location = 2) in vec4 a_color;
 
 out vec4 v_color;
+out vec2 v_texCoord;
 
 void main() {
     gl_Position = vec4(a_position, 1.0f);
     v_color = a_color;
+    v_texCoord = a_texCoord;
 }