Overhaul documentation page with my own layout.

I needed to do this in order to apply `class="content"` to the
paragraphs of text. This added padding which helped with readability.

https://gohugo.io/templates/lists/#by-weight

Author: jdblischak

content/docs/_index.md

@@ -0,0 +1,4 @@
+---
+title: Documentation
+description: How to use this site
+---

content/docs/add-project.md

@@ -0,0 +1,7 @@
+---
+title: How can I add my existing workflowr project to workflowr.io?
+weight: 2
+---
+
+Install the workflowr.io GitHub App on any repository you would like to add to
+this site.

content/docs/gitlab.md

@@ -0,0 +1,8 @@
+---
+title: Can I add a workflowr project hosted on GitLab?
+weight: 4
+---
+
+Not yet, but we plan to support public repositories hosted on [GitLab][].
+
+[GitLab]: https://about.gitlab.com/

content/docs/index.md

@@ -0,0 +1,15 @@
+---
+title: How can I create my own workflowr project?
+weight: 1
+---
+
+To start using workflowr, the best place to start is to go through the [Getting
+started vignette][getting-started]. This will take you from zero to deploying a
+website. Once you are comfortable with the basics of the workflowr framework,
+you can read through the other [vignettes][]. For example, if you already have
+an existing project that you would like to migrate to use workflowr, read
+[Migrating an existing project to use workflowr][migrating].
+
+[getting-started]: https://jdblischak.github.io/workflowr/articles/wflow-01-getting-started.html
+[vignettes]: https://jdblischak.github.io/workflowr/articles/index.html
+[migrating]: https://jdblischak.github.io/workflowr/articles/wflow-03-migrating.html

content/docs/new-project.md

@@ -0,0 +1,8 @@
+---
+title: How can I remove my workflowr project from workflowr.io?
+weight: 3
+---
+
+Uninstall the workflowr.io GitHub App from the repository. Go to Settings and
+choose Installed GitHub Apps. From there, you can add and remove which
+repositories the workflowr.io GitHub App has access to.

content/docs/remove-project.md

@@ -0,0 +1,26 @@
+
+{{ define "hero" }}
+  {{- partial "hero.html" . -}}
+{{ end }}
+
+{{ define "main" }}
+  <div class="columns">
+    <div class="column is-one-quarter">
+      <h4 class="title is-h4">Table of contents</h4>
+      <div class="content">
+      <ul>
+        {{ range .Pages.ByWeight }}
+          <li>
+            <a href="#{{ .Title | urlize }}">{{ .Title }}</a>
+          </li>
+        {{ end }}
+      </ul>
+    </div>
+    </div>
+    <div class="column is-half">
+      {{ range .Pages.ByWeight }}
+        {{ .Render "summary" }}
+      {{ end }}
+    </div>
+  </div>
+{{ end }}

layouts/docs/section.html

@@ -0,0 +1,5 @@
+
+  <h2 class="title is-h2" id="{{ .Title | urlize }}">{{ .Title }}</h2>
+  <div class="content">
+    {{ .Content }}
+  </div>