README: use modern style of badges

[CI SKIP]

README_ZH.md

@@ -1,5 +1,4 @@
-Gogs [![Build Status](https://travis-ci.org/gogs/gogs.svg?branch=master)](https://travis-ci.org/gogs/gogs) [![Build status](https://ci.appveyor.com/api/projects/status/b9uu5ejl933e2wlt/branch/master?svg=true)](https://ci.appveyor.com/project/Unknwon/gogs/branch/master)
-=====================
+# Gogs
 
 Gogs 是一款极易搭建的自助 Git 服务。
 

docker/README.md

@@ -1,6 +1,8 @@
 # Docker for Gogs
 
-Visit [Docker Cloud](https://cloud.docker.com/swarm/gogs/repository/docker/gogs/gogs) / [Docker Store](https://store.docker.com/community/images/gogs/gogs) see all available images and tags.
+![Docker pulls](https://img.shields.io/docker/pulls/gogs/gogs?logo=docker&style=for-the-badge) ![Docker image size](https://img.shields.io/microbadger/image-size/gogs/gogs?logo=docker&style=for-the-badge)
+
+Visit [Docker Cloud](https://cloud.docker.com/u/gogs/repository/docker/gogs/gogs) see all available images and tags.
 
 ## Usage