README.md in vagrant-snap-0.01 vs README.md in vagrant-snap-0.02

@@ -1,25 +1,73 @@
 What's this?
 ==================================
 vagrant snapshot management plugin
+can handle multi-vm envirnment.
 
-## install
+## Install
 
     gem install vagrant-snap
 
-## following commands are added
+## Following commands are added
 
     Tasks:
-      vagrant snap back              # back to current snapshot
-      vagrant snap delete SNAP_NAME  # delete snapshot
-      vagrant snap go SNAP_NAME      # go to specified snapshot
-      vagrant snap help [COMMAND]    # Describe subcommands or one specific subcommand
-      vagrant snap list              # list snapshot
-      vagrant snap take [desc]       # take snapshot
+      vagrant snap back                   # back to current snapshot
+      vagrant snap delete SNAP_NAME       # delete snapshot
+      vagrant snap go SNAP_NAME           # go to specified snapshot
+      vagrant snap help [COMMAND]         # Describe subcommands or one specific subcommand
+      vagrant snap list                   # list snapshot
+      vagrant snap take [NAME] [-d DESC]  # take snapshot
 
-## limitation
+## Example
 
-Currently multi-vm environment is not supported
+In actual example, current snapshot is highlighted with yellow ANSI color.
 
-## Similar project
+    t510 dev/vagtest02% vagrant snap take
+    [db]
+    0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
+    [web]
+    0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
+    t510 dev/vagtest02% 
+    t510 [1] dev/vagtest02% vagrant snap list    
+    [db]
+    +-db-01 [ 16 seconds ]
+    [web]
+    +-web-01 [ 14 seconds ]
+    t510 dev/vagtest02% vagrant snap take -d "2nd snap"
+    [db]
+    0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
+    [web]
+    0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
+    t510 dev/vagtest02% vagrant snap list 
+    [db]
+    +-db-01 [ 48 seconds ]
+        +-db-02 [ 10 seconds ] 2nd snap
+    [web]
+    +-web-01 [ 47 seconds ]
+        +-web-02 [ 8 seconds ] 2nd snap
+    t510 dev/vagtest02% vagrant snap go web-01 web                 
+    [web]
+    0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
+    Restoring snapshot 283d90aa-ef75-4316-a847-e04961c2ec26
+    0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
+    Waiting for the VM to power on...
+    VM has been successfully started.
+    t510 dev/vagtest02% vagrant snap list 
+    [db]
+    +-db-01 [ 1 minute ]
+        +-db-02 [ 40 seconds ] 2nd snap
+    [web]
+    +-web-01 [ 1 minute ]
+        +-web-02 [ 38 seconds ] 2nd snap
+    t510 dev/vagtest02% 
 
+
+## Similar project
 [sahara](https://github.com/jedi4ever/sahara)
+
+## Other
+I intentionally avoided naming this plugin as 'vagrant-snapshot', because I believe Vagrant author  
+implement snap shot management feature and want to use 'snapshot' as command name.
+
+## VM configuration
+In my experience, to avoid `VERR_SSM_LOAD_CONFIG_MISMATCH` error when restoreing snaphot,  
+disable `USB controller` and `absolte pointing device`.