Add GLFW OpenGL window example

1 files changed, 14 insertions, 1 deletions

diff --git a/README.md b/README.md
index 6238c22..833a9c7 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,15 @@
 # opentest
-Bloon test
+
+Sample OpenGL window example using GLFW.
+
+Compile on macOS:
+
+```
+clang main.c -o ogl_example -lglfw -framework OpenGL
+```
+
+Run:
+
+```
+./ogl_example
+```