Updated Mount (markdown)

Mount.md

@@ -15,6 +15,8 @@ To unmount, just shut it down the "weed mount".
 
 ### Weed Mount Architecture
 
+"weed mount" has a persistent connection to Master to know the locations of all volumes.
+
 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