Fix typos and define what's "breaking"

Author: roderickvd

CONTRIBUTING.md

@@ -31,7 +31,7 @@ In order to prepare for a PR, you will need to do a couple of things first:
 
 Make any changes that you are going to make to the code, but do not commit yet.
 
-Unless your changes are negligible, please add an entry in the "Unreleased" section of `CHANGELOG.md`. Refer to [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) for instructions on how this entry should look like.
+Unless your changes are negligible, please add an entry in the "Unreleased" section of `CHANGELOG.md`. Refer to [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) for instructions on how this entry should look like. If your changes break the API such that downstream packages that depend on librespot need to update their source to still compile, you should mark your changes as `(breaking)`.
 
 Make sure that the code is correctly formatted by running:
 ```bash

README.md

@@ -7,7 +7,7 @@ Current maintainers are [listed on GitHub](https://github.com/orgs/librespot-org
 # librespot
 *librespot* is an open source client library for Spotify. It enables applications to use Spotify's service to control and play music via various backends, and to act as a Spotify Connect receiver. It is an alternative to the official and [now deprecated](https://pyspotify.mopidy.com/en/latest/#libspotify-s-deprecation) closed-source `libspotify`. Additionally, it will provide extra features which are not available in the official library.
 
-_Note: librespot only works with Spotify Premium. This will remain the case. We will not any support features to make librespot compatible with free accounts, such as limited skips and adverts._
+_Note: librespot only works with Spotify Premium. This will remain the case. We will not support any features to make librespot compatible with free accounts, such as limited skips and adverts._
 
 ## Quick start
 We're available on [crates.io](https://crates.io/crates/librespot) as the _librespot_ package. Simply run `cargo install librespot` to install librespot on your system. Check the wiki for more info and possible [usage options](https://github.com/librespot-org/librespot/wiki/Options).
@@ -20,7 +20,7 @@ As the origin by [plietar](https://github.com/plietar/) is no longer actively ma
 # Documentation
 Documentation is currently a work in progress, contributions are welcome!
 
-There is some brief documentation on how the protocol works in the [docs](https://github.com/librespot-org/librespot/tree/master/docs) folder,
+There is some brief documentation on how the protocol works in the [docs](https://github.com/librespot-org/librespot/tree/master/docs) folder.
 
 [COMPILING.md](https://github.com/librespot-org/librespot/blob/master/COMPILING.md) contains detailed instructions on setting up a development environment, and compiling librespot. More general usage and compilation information is available on the [wiki](https://github.com/librespot-org/librespot/wiki).
 [CONTRIBUTING.md](https://github.com/librespot-org/librespot/blob/master/CONTRIBUTING.md) also contains our contributing guidelines.
@@ -30,26 +30,26 @@ If you wish to learn more about how librespot works overall, the best way is to
 # Issues & Discussions
 **We have recently started using Github discussions for general questions and feature requests, as they are a more natural medium for such cases, and allow for upvoting to prioritize feature development. Check them out [here](https://github.com/librespot-org/librespot/discussions). Bugs and issues with the underlying library should still be reported as issues.**
 
-If you run into a bug when using librespot, please search the existing issues before opening a new one. Chances are, we've encountered it before, and have provided a resolution. If not, please open a new one, and where possible, include the backtrace librespot generates on crashing, along with anything we can use to reproduce the issue, eg. the Spotify URI of the song that caused the crash.
+If you run into a bug when using librespot, please search the existing issues before opening a new one. Chances are, we've encountered it before, and have provided a resolution. If not, please open a new one, and where possible, include the backtrace librespot generates on crashing, along with anything we can use to reproduce the issue, e.g. the Spotify URI of the song that caused the crash.
 
 # Building
-A quick walk through of the build process is outlined here, while a detailed compilation guide can be found [here](https://github.com/librespot-org/librespot/blob/master/COMPILING.md).
+A quick walkthrough of the build process is outlined below, while a detailed compilation guide can be found [here](https://github.com/librespot-org/librespot/blob/master/COMPILING.md).
 
 ## Additional Dependencies
 We recently switched to using [Rodio](https://github.com/tomaka/rodio) for audio playback by default, hence for macOS and Windows, you should just be able to clone and build librespot (with the command below).
 For Linux, you will need to run the additional commands below, depending on your distro.
 
-On Debian/Ubuntu, the following command will install these dependencies :
+On Debian/Ubuntu, the following command will install these dependencies:
 ```shell
 sudo apt-get install build-essential libasound2-dev
 ```
 
-On Fedora systems, the following command will install these dependencies :
+On Fedora systems, the following command will install these dependencies:
 ```shell
 sudo dnf install alsa-lib-devel make gcc
 ```
 
-librespot currently offers the following selection of [audio backends](https://github.com/librespot-org/librespot/wiki/Audio-Backends).
+librespot currently offers the following selection of [audio backends](https://github.com/librespot-org/librespot/wiki/Audio-Backends):
 ```
 Rodio (default)
 ALSA
@@ -62,7 +62,7 @@ SDL
 Pipe
 Subprocess
 ```
-Please check the corresponding [compiling entry](https://github.com/librespot-org/librespot/wiki/Compiling#general-dependencies) for backend specific dependencies.
+Please check the corresponding [Compiling](https://github.com/librespot-org/librespot/wiki/Compiling#general-dependencies) entry on the wiki for backend specific dependencies.
 
 Once you've installed the dependencies and cloned this repository you can build *librespot* with the default backend using Cargo.
 ```shell
@@ -93,7 +93,7 @@ A full list of runtime options is available [here](https://github.com/librespot-
 _Please Note: When using the cache feature, an authentication blob is stored for your account in the cache directory. For security purposes, we recommend that you set directory permissions on the cache directory to `700`._
 
 ## Contact
-Come and hang out on gitter if you need help or want to offer some.
+Come and hang out on gitter if you need help or want to offer some:
 https://gitter.im/librespot-org/spotify-connect-resources
 
 ## Disclaimer