readme: Fix example code

Call waffle_make_current(dpy, NULL, NULL) before teardown.

Signed-off-by: Chad Versace <chad.versace@linux.intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/README.txt b/README.txt
index a002ae9..abc3312 100644
--- a/README.txt
+++ b/README.txt
@@ -95,6 +95,7 @@ example, see `/examples/gl_basic.c` [3].
         waffle_window_swap_buffers(window);
 
         // Teardown waffle.
+        waffle_make_current(dpy, NULL, NULL);
         waffle_window_destroy(window);
         waffle_context_destroy(ctx);
         waffle_config_destroy(config);