Fix some basic proposal issues

proposals/alecdenny.rst

-.. _gsoc-proposal-template:
+.. _gsoc-proposal-alecdenny:
 
 Proposal template 
 #################

proposals/drone_cape_for_beagle-v-fire.rst

-.. _gsoc-proposal-template:
+.. _gsoc-proposal-drone-cape:
 
 Drone Cape for BeagleV-Fire 
 ############################

proposals/index.rst

-    :hidden:
+.. _gsoc-proposals:
 
+Proposals
+#########
+
+.. tip:: 
+
+    Checkout :ref:`gsoc-project-ideas` page to explore ideas and :ref:`gsoc-proposal-guide` page to write your own proposal.
+
++.. toctree:: 
+
+    template
     melta101
     drone_cape_for_beagle-v-fire
     suraj-sonawane
     alecdenny
-    template
+    matt-davison
 

proposals/matt-davison.rst

-.. _gsoc-proposal-template:
+.. _gsoc-proposal-difflogic:
 
 Acoustic Sensing with DiffLogic
-#################
+################################
 
 Introduction
 *************

proposals/suraj-sonawane.rst

-.. _gsoc-proposal-template:
+.. _gsoc-proposal-zephyr-r5:
 
 Upstream Zephyr Support on BeagleBone AI-64 R5 
 ################################################