Update env example

.env.example

@@ -2,3 +2,7 @@ AUTH_SECRET_KEY={from auth.sch}
 AUTH_ID={from auth.sch}
 SESSION_SECRET={can be anything}
 REDIRECT_URI={redirect after auth, not required, default = /}
+MONGO_USER=admin
+MONGO_PASS=admin
+MONGO_HOST=localhost
+MONGO_DB=bodysch