Move site content into the src directory.

This clearly separates site content from other repo state.

Gemfile.lock

@@ -1,8 +1,9 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (4.2.8)
+    activesupport (4.2.7)
       i18n (~> 0.7)
+      json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
@@ -21,8 +22,8 @@ GEM
     ffi (1.9.18)
     forwardable-extended (2.6.0)
     gemoji (3.0.0)
-    github-pages (137)
+    github-pages (134)
-      activesupport (= 4.2.8)
+      activesupport (= 4.2.7)
       github-pages-health-check (= 1.3.3)
       jekyll (= 3.4.3)
       jekyll-avatar (= 0.4.2)
@@ -38,7 +39,7 @@ GEM
       jekyll-redirect-from (= 0.12.1)
       jekyll-relative-links (= 0.4.0)
       jekyll-sass-converter (= 1.5.0)
-      jekyll-seo-tag (= 2.2.2)
+      jekyll-seo-tag (= 2.2.0)
       jekyll-sitemap (= 1.0.0)
       jekyll-swiss (= 0.4.0)
       jekyll-theme-architect (= 0.0.4)
@@ -60,7 +61,7 @@ GEM
       liquid (= 3.0.6)
       listen (= 3.0.6)
       mercenary (~> 0.3)
-      minima (= 2.1.1)
+      minima (= 2.0.0)
       rouge (= 1.11.1)
       terminal-table (~> 1.4)
     github-pages-health-check (1.3.3)
@@ -114,7 +115,7 @@ GEM
       jekyll (~> 3.3)
     jekyll-sass-converter (1.5.0)
       sass (~> 3.4)
-    jekyll-seo-tag (2.2.2)
+    jekyll-seo-tag (2.2.0)
       jekyll (~> 3.3)
     jekyll-sitemap (1.0.0)
       jekyll (~> 3.3)
@@ -154,6 +155,7 @@ GEM
       gemoji (~> 3.0)
       html-pipeline (~> 2.2)
       jekyll (>= 3.0)
+    json (1.8.6)
     kramdown (1.13.2)
     liquid (3.0.6)
     listen (3.0.6)
@@ -161,12 +163,11 @@ GEM
       rb-inotify (>= 0.9.7)
     mercenary (0.3.6)
     mini_portile2 (2.1.0)
-    minima (2.1.1)
+    minima (2.0.0)
-      jekyll (~> 3.3)
+    minitest (5.10.1)
-    minitest (5.10.2)
     multipart-post (2.0.0)
     net-dns (0.8.0)
-    nokogiri (1.7.2)
+    nokogiri (1.7.1)
       mini_portile2 (~> 2.1.0)
     octokit (4.7.0)
       sawyer (~> 0.8.0, >= 0.5.3)

_config.yml

@@ -1,3 +1,5 @@
+source: ./src
+
 markdown:
   kramdown
 
@@ -32,20 +34,3 @@ collections:
 gems:
   - jekyll-redirect-from
   - jekyll-sitemap
-
-exclude:
-  - README.md
-  - LICENSE
-  - Gemfile
-  - Gemfile.lock
-  - CNAME
-  - CONTRIBUTING.md
-  - .gitignore
-  - Vagrantfile
-  - .vagrant
-  - _docs/concepts/concept.md.template
-  - _docs/tasks/task.md.template
-  - _docs/tutorials/tutorial.md.template
-  - _docs/samples/sample.md.template
-  - _docs/reference/reference.md.template
-  - scripts/