message: Fix Wrong documentation about multiple "extends"
  defaultClasses(gh-page): fix wrong documentation about extending multiple classes
  fixed typegoose/typegoose#78
diff: @@ -52,8 +52,11 @@ Here you can find extra infomation
  ### Use multiple classes together
  -Because [TimeStamps](#timestamps) dont extend [Base](#base), you can use multiple classes like in this Example:
  +Because [TimeStamps](#timestamps) dosnt extend [Base](#base), you can combine them like below, but because multiple extends are not supported nativly in ES/JS/TS, you have to use mixins
  +-> [Look at Typescript guide to understand this](https://www.typescriptlang.org/docs/handbook/mixins.html)
  ```ts
  -class Something extends TimeStamps, Base {}
  +interface Something extends Base, TimeStamps {} // have the interface to override the types
  +class Something {} // have your class
  +applyMixins(Something, [Base, TimeStamps]); // apply the two other classes
  ```
  