Use markdown link instead of <a> element

Currently we are busy refactoring the Capacitor Google Maps plugin. One of the improvements is better documentation. The fork (WIP) can be found here: https://github.com/DutchConcepts/capacitor-google-maps/tree/next

I use `docsify` to generate an organized documentation website based on the markdown documentation (can be found in the `./docs` folder in that fork). The API reference is generated with this plugin. This works really well, for which I commend you 👏.

The generated website (GitHub pages) can be found [here](https://dutchconcepts.github.io/capacitor-google-maps/#/api).

As can be seen, the links generated by docgen are broken, because they are a `` element instead of a markdown link.

It would be solved by changing:
```FooBar```
to
```[FooBar](#foobar)```

The docsify team said the following:

> You need generate markdown syntax. Such as
>
> ```[MyClass](#MyClass)```
>
> It will not be compiled if it is HTML.

Therefore I hope it can be solved in this plugin. As far as I can see now, I don't think this change does have any drawbacks, so it would make sense to implement it like this. But please do share your opinion about this.