Merge branch 'master' of https://github.com/chrislusf/seaweedfs.wiki

Mount.md

@@ -15,8 +15,11 @@ For reads:
 1. Client Reads File Metadata => Weed Filer => Weed Filer database (LevelDB, Cassandra, Redis, Mysql, Postgres, etc)
 2. Client Reads File Chunks => Weed Volume Servers
 
-
+![](MountRead.png)
 
 For writes:
 1. Client uploads data to Weed Volume Servers, and breaks the large files into chunks.
 2. Client writes the metadata and chunk information into Filer and then into Filer database.
+
+![](MountWrite.png)
+