tweak download/install instructions to use release metadata

docs/Gemfile

@@ -1,3 +1,4 @@
 source 'https://rubygems.org'
 gem 'github-pages', group: :jekyll_plugins
 gem 'jekyll-redirect-from'
+gem 'jekyll-octicons'

docs/Gemfile.lock

@@ -124,6 +124,9 @@ GEM
     jekyll-mentions (1.4.1)
       html-pipeline (~> 2.3)
       jekyll (~> 3.0)
+    jekyll-octicons (9.1.1)
+      jekyll (~> 3.1)
+      octicons (= 9.1.1)
     jekyll-optional-front-matter (0.3.0)
       jekyll (~> 3.0)
     jekyll-paginate (1.1.0)
@@ -207,6 +210,8 @@ GEM
     multipart-post (2.1.1)
     nokogiri (1.10.3)
       mini_portile2 (~> 2.4.0)
+    octicons (9.1.1)
+      nokogiri (>= 1.6.3.1)
     octokit (4.14.0)
       sawyer (~> 0.8.0, >= 0.5.3)
     pathutil (0.16.2)
@@ -243,6 +248,7 @@ PLATFORMS
 
 DEPENDENCIES
   github-pages
+  jekyll-octicons
   jekyll-redirect-from
 
 BUNDLED WITH

docs/_config.yml

@@ -1 +1,3 @@
 theme: jekyll-theme-primer
+gems:
+  - jekyll-octicons

docs/_layouts/default.html

@@ -27,10 +27,8 @@
 	display:inline-block;
 	cursor:pointer;
 	color:#ffffff;
-	font-family:Arial;
-	font-size:15px;
 	font-weight:bold;
-	padding:6px 24px;
+	padding:0.25em 1em;
 	text-decoration:none;
 	text-shadow:0px 1px 0px #9b14b3;
 }
@@ -48,6 +46,12 @@
 	position:relative;
 	top:1px;
 }
+svg.octicon {
+  margin-right: 0.25em;
+}
+a.btn svg {
+  fill: white;
+}
 
 </style>
 

docs/features.markdown

@@ -2,7 +2,7 @@
 title: Feature list | Wez's Terminal
 ---
 
-## Available Features
+## {% octicon list-unordered height:24 %} Available Features
 
 * Runs on Linux, macOS and Windows 10
 * [Multiplex terminal tabs and windows on local and remote hosts, with native mouse and scrollback](multiplexing.html)

docs/index.markdown

@@ -5,8 +5,19 @@ title: Wez's Terminal
 *A GPU-accelerated cross-platform terminal emulator and multiplexer written by <a href="https://github.com/wez/">@wez</a> and implemented in <a href="https://www.rust-lang.org/">Rust</a>*
 
 <div>
-<a href="https://github.com/wez/wezterm/releases/latest" class="btn" style="margin-right:1em"
->Download</a> <a href="installation.html">installation instructions</a>
+
+{% for asset in site.github.latest_release.assets %}
+  {% if asset.name contains 'azure' %}
+    {% if asset.name contains 'windows' %}
+  <a href="{{ asset.browser_download_url }}" class="btn" style="margin-right:1em">{% octicon cloud-download %} Download for Windows</a>
+    {% endif %}
+    {% if asset.name contains 'macos' %}
+  <a href="{{ asset.browser_download_url }}" class="btn" style="margin-right:1em">{% octicon cloud-download %} Download for macOS</a>
+    {% endif %}
+  {% endif %}
+{% endfor %}
+
+    <a href="installation.html">Linux and other installation instructions</a>
 </div>
 
 ## Features

docs/installation.markdown

@@ -2,15 +2,57 @@
 title: Installation
 ---
 
-## Installing a package
+## {% octicon cloud-download height:24 %} Installing a pre-built package on Windows
 
-* Linux, macOS and Windows packages are available from [the Releases page](https://github.com/wez/wezterm/releases)
-* Bleeding edge Windows package available from [Appveyor](https://ci.appveyor.com/project/wez/wezterm/build/artifacts?branch=master)
+Windows 10 or later is required to run WezTerm.
 
-## Installing from source
+{% for asset in site.github.latest_release.assets %}
+  {% if asset.name contains 'azure' and asset.name contains 'windows' %}
+1. Download <a href="{{ asset.browser_download_url }}">{{ asset.name }}</a>
+2. Extract the zipfile and double-click `wezterm.exe` to run the UI
+3. Configuration instructions can be [found here](configuration.html)
+  {% endif %}
+{% endfor %}
+
+## {% octicon cloud-download height:24 %} Installing a pre-built package on macOS
+
+The CI system builds the package on macOS Mojave (10.14).  It may run on earlier
+versions of macOS, but that has not been tested.
+
+{% for asset in site.github.latest_release.assets %}
+  {% if asset.name contains 'azure' and asset.name contains 'macos' %}
+1. Download <a href="{{ asset.browser_download_url }}">{{ asset.name }}</a>
+2. Extract the zipfile and drag the `WezTerm.app` bundle to your `Applications` folder
+3. First time around, you may need to right click and select `Open` to allow launching
+   the application that your just downloaded from the internet.
+3. Subsequently, a simple double-click will launch the UI
+4. Configuration instructions can be [found here](configuration.html)
+  {% endif %}
+{% endfor %}
+
+## {% octicon cloud-download height:24 %} Installing a pre-built package on Ubuntu
+
+The CI system builds a `.deb` file on Ubuntu 16.04.  It may be compatible with other
+debian style systems.
+
+{% for asset in site.github.latest_release.assets %}
+  {% if asset.name contains '.deb' %}
+
+* <tt>curl -LO <a href="{{ asset.browser_download_url }}">{{ asset.browser_download_url }}</a></tt>
+* `sudo dpkg -i {{ asset.name }}`
+* The package installs `/usr/bin/wezterm`
+* Configuration instructions can be [found here](configuration.html)
+  {% endif %}
+{% endfor %}
+
+## {% octicon beaker height:24 %} Nightly builds
+
+Bleeding edge nightly pre-release builds may be available from [the releases page](https://github.com/wez/wezterm/releases).
+
+## {% octicon git-branch height:24 %} Installing from source
 
 * Install `rustup` to get the `rust` compiler installed on your system.
-  https://www.rust-lang.org/en-US/install.html
+  [Install rustup](https://www.rust-lang.org/en-US/install.html)
 * Rust version 1.35 or later is required
 * Build in release mode: `cargo build --release`
 * Run it via either `cargo run --release` or `target/release/wezterm`
@@ -29,4 +71,3 @@ $ cargo build --release
 $ cargo run --release -- start
 ```
 
-