added a temporary avatar

src/component/Timeline/Timeline.styl

         position relative
         top 40px
         left -20px
+        border-radius 50%
+        width 50px
+        height 50px
         & > img
           width 45px
           height 45px
     &__version
       display flex
       justify-content space-between
-      margin-top 40px
+      margin 40px 0 20px 0
       padding 10px 15px
       width 100%
       background-color lightGrey
         width 145px
         color white
         font-size 17px
+        cursor pointer
         & > i
           margin-right 10px
           color off-white