Update 05-demos.rst

boards/beaglev/ahead/05-demos.rst

 .. _beaglev-ahead-demos:
 
 Demos
-#####
\ No newline at end of file
+#####
+
+.. todo::
+
+    We need a CSI capture and DSI display demos
+
+... todo::
+
+    We need a cape compatibility layer demo