add require yii2-bootstrap

Author: lesha724

README.md

@@ -80,4 +80,10 @@ $items = [
         }'
     ]
 ]); ?>
-```
+```
+
+Links
+-----
+* (items strucrure)[https://github.com/patternfly/patternfly-bootstrap-treeview#data-structure]
+* (widget options)[https://github.com/patternfly/patternfly-bootstrap-treeview#options]
+* (js events)[https://github.com/patternfly/patternfly-bootstrap-treeview#events]

composer.json

@@ -13,6 +13,7 @@
     ],
     "require": {
         "yiisoft/yii2": "*",
+		"yiisoft/yii2-bootstrap": "*",
         "bower-asset/patternfly-bootstrap-treeview": "^2.1"
     },
     "autoload": {