Update README

Author: fpoli

README.md

@@ -18,7 +18,7 @@ Useful links
 
 * :computer: [VS Code extension](https://marketplace.visualstudio.com/items?itemName=viper-admin.prusti-assistant) to use Prusti from your IDE.
 * :book: [User guide](https://viperproject.github.io/prusti-dev/user-guide/), containing installation instructions, a guided tutorial and a description of various verification features.
-* :woman_technologist: [Developer guide](https://viperproject.github.io/prusti-dev/dev-guide/), meant for new contributors. If you wonder how to help, give a look at the [good first issues](https://github.com/viperproject/prusti-dev/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22).
+* :woman_technologist: [Developer guide](https://viperproject.github.io/prusti-dev/dev-guide/), intended for new contributors. If you want to help, check our [good first issues](https://github.com/viperproject/prusti-dev/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22).
 * :books: [List of publications](http://www.pm.inf.ethz.ch/research/prusti.html). To cite the Prusti verifier, please use [this BibTeX entry](http://pm.inf.ethz.ch/publications/getbib.php?action=bibtex&bibname=Own&id=AstrauskasMuellerPoliSummers19b).
 * :film_projector: [Presentation](https://www.youtube.com/watch?v=C9TTioH5JUg) of Prusti's research project. It includes a demo.
 * :balance_scale: [License](https://github.com/viperproject/prusti-dev/blob/master/LICENSE) of the source code (Mozilla Public License Version 2.0, for code authored by us).
@@ -30,7 +30,7 @@ Getting Prusti
 The easiest way to try out Prusti is by using the ["Prusti Assistant"](https://marketplace.visualstudio.com/items?itemName=viper-admin.prusti-assistant) extension for VS Code. See the **requirements** and the troubleshooting section in its [readme](https://github.com/viperproject/prusti-assistant/blob/master/README.md).
 
 Alternatively, if you wish to use Prusti from the command line there are three options:
-* Download the precompiled binaries for Ubuntu, Windows, or macOS x64 from a [GitHub release](https://github.com/viperproject/prusti-dev/releases).
+* Download the precompiled binaries for Ubuntu, Windows, or macOS from a [GitHub release](https://github.com/viperproject/prusti-dev/releases).
 * Compile from the source code, by installing [rustup](https://rustup.rs/), running `./x.py setup` and then `./x.py build --release`.
 * (unmaintained) Build a Docker image from this [`Dockerfile`](Dockerfile).