Install link fix [skip ci]
Models link fix [skip ci]
Links fix [skip ci]
Merge branch 'temp' of https://github.com/klevron/yii2

* 'temp' of https://github.com/klevron/yii2:
  Links fix [skip ci]
  Models link fix [skip ci]
  Install link fix [skip ci]

Conflicts:
	docs/guide/intro-upgrade-from-v1.md