Added information about additional dependencies for some plugins

(Hipchat, Slack and Flowdock).

docs/en/README.md

@@ -78,7 +78,7 @@ Plugins
 
 * [Campfire](plugins/campfire.md) - `campfire`
 * [Email](plugins/email.md) - `email`
-* FlowDock - `flowdock_notify`
+* [FlowDock](plugins/flowdock_notify.md) - `flowdock_notify`
 * [HipChat](plugins/hipchat_notify.md) - `hipchat_notify`
 * [IRC](plugins/irc.md) - `irc`
 * [Slack](plugins/slack_notify.md) - `slack_notify`

docs/en/plugins/flowdock_notify.md

@@ -0,0 +1,14 @@
+Plugin FlowdockNotify
+=====================
+
+This plugin joins a [Flowdock](https://www.flowdock.com/) room and sends a user-defined message, for example a 
+"Build Succeeded" message.
+
+Installation
+------------
+
+The plugin depends on `mremi/flowdock` library. To use FlowdockNotify plugin you should install dependency:
+
+```
+composer require "mremi/flowdock"
+```

docs/en/plugins/hipchat_notify.md

@@ -1,13 +1,15 @@
-Plugin Hipchat Notify
+Plugin HipchatNotify
 =====================
 
 This plugin joins a [HipChat](https://www.hipchat.com/) room and sends a user-defined message, for example a 
 "Build Succeeded" message.
 
-Install via Composer
+Installation
---------------------
+------------
+
+The plugin depends on `hipchat/hipchat-php` library. To use HipchatNotify plugin you should install dependency:
+
 ```
-cd /var/www/php-censor
 composer require "hipchat/hipchat-php"
 ```
 

docs/en/plugins/slack_notify.md

@@ -1,9 +1,18 @@
-Plugin Slack Notify
+Plugin SlackNotify
 ===================
 
 This plugin joins a [Slack](https://www.slack.com/) room and sends a user-defined message, for example a "Build 
 Succeeded" message.
 
+Installation
+------------
+
+The plugin depends on `maknz/slack` library. To use SlackNotify plugin you should install dependency:
+
+```
+composer require "maknz/slack"
+```
+
 Configuration
 -------------