update docs

README.md

@@ -7,13 +7,11 @@
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 [![codecov](https://codecov.io/github/mattholy/wand/graph/badge.svg?token=E9FLI822U9)](https://codecov.io/github/mattholy/wand)
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 [🇬🇧English](README.md) | [🇨🇳中文](README_zh-CN.md)
 
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 <img src="./docs/fedi.png" height="100"/>
 
 </div>
@@ -34,6 +32,14 @@ Wand, as a strand in the Fediverse, will devote all its strength to tirelessly w
 
 ### Wand Provides
 
+- Ability to connect each other as a relay or a strand
+- Ability to see the Fediverse your Wand connected
+- Dashboard to view data stats, like how many services your Wand connected
+- Easy-to-use modern interface
+- Distributed deployment, easy to scale
+- Discover other Wand in Fediverse
+- GPG identity, not username/password, for security
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 </div>