README.md in oxidized-0.3.0 vs README.md in oxidized-0.4.0

@@ -69,11 +69,10 @@
 ## Debian
 Install all required packages and gems.
 
 ```shell
 apt-get install ruby ruby-dev libsqlite3-dev libssl-dev pkg-config cmake
-gem install rugged
 gem install oxidized
 gem install oxidized-script oxidized-web # if you don't install oxidized-web, make sure you remove "rest" from your config
 ```
 
 ## CentOS, Oracle Linux, Red Hat Linux version 6
@@ -191,11 +190,11 @@
     map:
       name: 0
       model: 1
       username: 2
       password: 3
-    var_map:
+    vars_map:
       enable: 4
 ```
 
 ### Source: SQLite
 
@@ -211,11 +210,11 @@
     map:
       name: fqdn
       model: model
       username: username
       password: password
-    var_map:
+    vars_map:
       enable: enable
 ```
 
 ### Output: File
 
@@ -277,10 +276,10 @@
     map:
       name: 0
       model: 1
       username: 2
       password: 3
-    var_map:
+    vars_map:
       enable: 4
 model_map:
   cisco: ios
   juniper: junos
 ```