Improve README.md

Author: serverwentdown

README.md

@@ -1,7 +1,23 @@
 
-# caddy
+# [caddy](https://hub.docker.com/r/productionwentdown/caddy/)
 
 A tiny 4MB Caddy image compressed with [UPX](https://github.com/upx/upx).
 
 [![](https://images.microbadger.com/badges/image/productionwentdown/caddy.svg)](https://microbadger.com/images/productionwentdown/caddy "Get your own image badge on microbadger.com")
 
+# Usage
+
+Serve files in `$PWD`:
+```
+docker run -it --rm -p 2015:2015 -v $PWD:/srv productionwentdown/caddy
+```
+
+Overwrite `Caddyfile`:
+```
+docker run -it --rm -p 2015:2015 -v $PWD:/srv -v $PWD/Caddyfile:/etc/Caddyfile productionwentdown/caddy
+```
+
+Persist `.caddy` to avoid hitting Let's Encrypt's rate limit:
+```
+docker run -it --rm -p 2015:2015 -v $PWD:/srv -v $PWD/Caddyfile:/etc/Caddyfile -v $HOME/.caddy:/etc/.caddy productionwentdown/caddy
+```

index.html

@@ -2,7 +2,3 @@
 <h1>
     Hello, Caddy!
 </h1>
-<p>
-    To use this container, mount your files into /srv. Example: 
-    <pre>docker run -it --rm -p 2015:2015 -v $PWD:/srv productionwentdown/caddy</pre>
-</p>