README.md in ruboty-1.1.9 vs README.md in ruboty-1.2.0

@@ -14,10 +14,11 @@
 * [ruboty-twitter](https://github.com/r7kamura/ruboty-twitter)
 
 ## Brain
 Brain persists your robot's memory.
 
+* [ruboty-leveldb](https://github.com/nownabe/ruboty-leveldb)
 * [ruboty-redis](https://github.com/r7kamura/ruboty-redis)
 
 ## Handler
 Handler provides various behaviors to your robot.
 
@@ -30,10 +31,12 @@
 * [ruboty-kokodeikku](https://github.com/r7kamura/ruboty-kokodeikku)
 * [ruboty-lgtm](https://github.com/negipo/ruboty-lgtm)
 * [ruboty-syoboi_calendar](https://github.com/r7kamura/ruboty-syoboi_calendar)
 * [ruboty-talk](https://github.com/r7kamura/ruboty-talk)
 
+[Other plugins are hosted on Rubygems.](https://rubygems.org/search?utf8=%E2%9C%93&query=ruboty-)
+
 ## Configuration
 Store configuration value in envorinment variables.
 They are easy to change between deploys without changing any code.
 We recommend to put `.env` and run with `ruboty --dotenv` option to manage them.
 
@@ -46,14 +49,15 @@
 gem "ruboty-google_image"
 gem "ruboty-redis"
 gem "ruboty-slack"
 ```
 
-## Environment
+## ENV
 ```
-LOG_LEVEL   - Log level for debug (default: 3)
-RUBOTY_NAME - Name to respond to mention (default: ruboty)
-RUBOTY_ENV  - Loaded gem group name (default: development)
+DISABLE_DEFAULT_HANDLERS - Pass 1 to disable default handlers (default: nil)
+LOG_LEVEL                - Log level for debug (default: 3)
+RUBOTY_ENV               - Loaded gem group name (default: development)
+RUBOTY_NAME              - Name to respond to mention (default: ruboty)
 ```
 
 ## Deploy
 See [r7kamura/ruboty-template](https://github.com/r7kamura/ruboty-template) for example.