docs: add glsl info
diff --git a/docs/sourcetree.html b/docs/sourcetree.html
index 00dc4e7..08a9a50 100644
--- a/docs/sourcetree.html
+++ b/docs/sourcetree.html
@@ -23,6 +23,7 @@
     <ul>
     <li><b>docs</b> - EGL documentation
     <li><b>drivers</b> - EGL drivers
+    <li><b>glsl</b> - the GLSL compiler
     <li><b>main</b> - main EGL library implementation.  This is where all
         the EGL API functions are implemented, like eglCreateContext().
     </ul>