added call to GET version (commit hash)

README.md

@@ -108,7 +108,7 @@ virtualenv -p python3 .
 Install the dependencies:
 
 ```shell
-pip install tweepy pytoml Mastodon.py bottle pyjwt pylibscrypt Markdown twx
+pip install tweepy pytoml Mastodon.py bottle pyjwt pylibscrypt Markdown twx gitpython
 ```
 
 Configure the bot:

frontend.py

@@ -63,6 +63,13 @@ def confirm(city, token):
     return dict(error='Email confirmation failed.')
 
 
+@get('/version')
+def version():
+    import git
+    repo = git.Repo(search_parent_directories=True)
+    return repo.head.object.hexsha
+
+
 @post('/login')
 @view('template/login.tpl')
 def login_post():