update description to match the one used in pypi

Author: spderosso

snap/snapcraft.yaml

@@ -4,10 +4,14 @@ name: gitless
 version: git
 summary: A simple version control system built on top of Git
 description: |
-  Version control system that is built on top of Git in
-  attempt to make user interface easier by playing with
-  underlying concepts. Gitless is fully compatible with
-  Git and can be used with it interchangeably.
+  Gitless is an experimental version control system built on top of Git.
+  Many people complain that Git is hard to use. We think the problem lies
+  deeper than the user interface, in the concepts underlying Git. Gitless
+  is an experiment to see what happens if you put a simple veneer on an
+  app that changes the underlying concepts. Because Gitless is implemented
+  on top of Git (could be considered what Git pros call a "porcelain" of
+  Git), you can always fall back on Git. And of course your coworkers you
+  share a repo with need never know that you're not a Git aficionado.
 
 grade: devel          # 'stable' for stable/candidate upload
 confinement: devmode  # 'strict' after right plugs and slots
@@ -34,4 +38,4 @@ parts:
       - git
     build-packages:
       - git
-      
+