Merge pull request #236 from maxisam/chore/doc

doc: update

README.md

@@ -17,14 +17,13 @@ To make more sense with the future versioning scheme of Angular, the directive s
 
 ## Dependencies
 
--   Angular >=6.0.0
+ - If you need to use it on 2.x, please use version 7.x.x.
+ - If you need to use it on 4.x, please use version 8.x.x.
+ - If you need to use it on 5.x, please use version 10.x.x.
+ - If you need to use it on 8.x, please use version 12.x.x.
+ - If you need to use it on 9.x, please use version 13.x.x.
 
-If you need to use it on 2.x, please use version 7.x.x.
-If you need to use it on 4.x, please use version 8.x.x.
-If you need to use it on 5.x, please use version 10.x.x.
-If you need to use it on 9.x, please use version 13.x.x.
-
-The code are pretty much the same, in 8.0.0 it uses InjectionToken which requires angular4 and above.
+The code are pretty much the same, in v8.0.0 it uses InjectionToken which requires angular4 and above.
 
 ## Install