README: add link to fluence.network, fix link to manifesto
*The project is a work in progress!*
-See the [Motivation](http://fluence.network/manifesto.html), follow updates on [Twitter](https://twitter.com/fluence_project) or subscribe to the [newsletter](https://fluence.network/).
+[fluence.network](https://fluence.network)
+
+See the [Vision manifesto](http://fluence.one/manifesto.html), follow updates on [Twitter](https://twitter.com/fluence_project) or subscribe to the [newsletter](https://fluence.network/).
For documentation, go [here](https://fluence.dev/)
