README: markdown cleanup, line-wrapping, etc (#892)

Author: chalin

README.md

@@ -1,59 +1,81 @@
-# Docsy 
+# Docsy
 
-Docsy is a [Hugo](https://gohugo.io/) theme for technical documentation sets, providing simple navigation, site structure, and more.
+Docsy is a [Hugo](https://gohugo.io) theme for technical documentation sets,
+providing simple navigation, site structure, and more.
 
-This is not an officially supported Google product. This project is actively being maintained.
+This is not an officially supported Google product. This project is actively
+being maintained.
 
 ## Prerequisites
 
 The following are basic prerequisites for using Docsy in your site:
 
-- Install a recent release of the Hugo "extended" version (we recommend version 0.53 or later). If you install from the 
-  [release page](https://github.com/gohugoio/hugo/releases), make sure you download the `_extended` version 
-  which supports SCSS.
+- Install a recent release of the Hugo "extended" version (we recommend version
+  0.53 or later). If you install from the [release
+  page](https://github.com/gohugoio/hugo/releases), make sure you download the
+  `_extended` version which supports SCSS.
 
-- Install `PostCSS` so that the site build can create the final CSS assets. You can install it locally by running 
-  the following commands from the root directory of your project:
+- Install `PostCSS` so that the site build can create the final CSS assets. You
+  can install it locally by running the following commands from the root
+  directory of your project:
 
-  ```
-  sudo npm install -D --save autoprefixer
-  sudo npm install -D --save postcss-cli
+  ```console
+  $ sudo npm install -D --save autoprefixer
+  $ sudo npm install -D --save postcss-cli
   ```
 
 ## Example and usage
 
-You can find an example project that uses Docsy in the [Docsy Example Project repo](https://github.com/google/docsy-example).The Docsy Example Project is hosted at [https://example.docsy.dev/](https://example.docsy.dev/). For real-life examples of sites that use Docsy (and their source repos), see our [Examples](https://www.docsy.dev/docs/examples/) page.
+You can find an example project that uses Docsy in the [Docsy Example Project
+repo](https://github.com/google/docsy-example).The Docsy Example Project is
+hosted at [https://example.docsy.dev](https://example.docsy.dev). For
+real-life examples of sites that use Docsy (and their source repos), see our
+[Examples](https://www.docsy.dev/docs/examples/) page.
 
 To use the Docsy theme for your own site:
 
-  - (Recommended) Use the [example project](https://github.com/google/docsy-example),
-     which includes the Docsy theme as a submodule, as a template to create your project.
-    You can customize this pre-configured basic site into your own Docsy themed site. 
-    [Learn more...](https://github.com/google/docsy-example)
-  
-  - Add Docsy to your existing Hugo site repo's `themes` directory. You can either add Docsy as a Git submodule, or 
-    clone the Docsy theme into your project.
+- (Recommended) Use the [example
+  project](https://github.com/google/docsy-example), which includes the Docsy
+  theme as a submodule, as a template to create your project. You can customize
+  this pre-configured basic site into your own Docsy themed site. [Learn
+  more...](https://github.com/google/docsy-example)
 
-See the [Docsy Getting Started Guide](https://docsy.dev/docs/getting-started/) for 
-details about the various usage options.
+- Add Docsy to your existing Hugo site repo's `themes` directory. You can
+  either add Docsy as a Git submodule, or clone the Docsy theme into your
+  project.
 
-## Documentation
+See the [Docsy Getting Started Guide](https://docsy.dev/docs/getting-started/)
+for details about the various usage options.
 
-Docsy has its own user guide (using Docsy, of course!) with lots more information about using the theme, which you can find at [https://docsy.dev/](https://docsy.dev/). Alternatively you can use Hugo to generate and serve a local copy of the guide (also useful for testing local theme changes), making sure you have installed all the prerequisites listed above:
+## Documentation
 
-```
-git clone --recurse-submodules --depth 1 https://github.com/google/docsy.git
-cd docsy/userguide/
-hugo server --themesDir ../..
+Docsy has its own user guide (using Docsy, of course!) with lots more
+information about using the theme, which you can find at
+[https://docsy.dev](https://docsy.dev). Alternatively you can use Hugo to
+generate and serve a local copy of the guide (also useful for testing local
+theme changes), making sure you have installed all the prerequisites listed
+above:
+
+```console
+$ git clone --recurse-submodules --depth 1 https://github.com/google/docsy.git
+$ cd docsy/userguide/
+$ hugo server --themesDir ../..
 ```
 
-Note: you need the `themesDir` flag when running Hugo because the site files are inside the theme repo.
+Note: you need the `themesDir` flag when running Hugo because the site files are
+inside the theme repo.
 
 ## Contributing ![GitHub](https://img.shields.io/github/contributors/google/docsy)
 
-Please read [CONTRIBUTING.md](https://github.com/google/docsy/blob/master/CONTRIBUTING.md) for details on our code of conduct, and the process for submitting pull requests to us.
-See also the list of [contributors](https://github.com/google/docsy/graphs/contributors) who participated in this project.
+Please read
+[CONTRIBUTING.md](https://github.com/google/docsy/blob/master/CONTRIBUTING.md)
+for details on our code of conduct, and the process for submitting pull requests
+to us. See also the list of
+[contributors](https://github.com/google/docsy/graphs/contributors) who
+participated in this project.
 
 ## License ![GitHub](https://img.shields.io/github/license/google/docsy)
 
-This project is licensed under the Apache License 2.0 - see the [LICENSE.md](https://github.com/google/docsy/blob/master/LICENSE) file for details
+This project is licensed under the Apache License 2.0 - see the
+[LICENSE.md](https://github.com/google/docsy/blob/master/LICENSE) file for
+details