Updated Getting Started (markdown)

Getting-Started.md

@@ -18,7 +18,7 @@ Put the file "weed" to all related computers, in any folder you want. Use
 ./weed master -h # to check available options
 ```
 
-If no replication is required, this will be enough. The "mdir" option is to configure a folder where the generated sequence file ids are saved.
+If no replication is required, this will be enough. The "mdir" option is to configure a folder where the maximum of generated volume id are saved.
 
 ```bash
 ./weed master -mdir="."