Add trailing slashes to various internal doc links.

Fixes #110

docs/Rakefile

@@ -47,7 +47,7 @@ task :serve do
         run Bonsai::DevelopmentServer
       }
       Rack::Handler.default.run(app, :Port => 5000) do
-        Launchy.open("http://localhost:5000/jq")
+        Launchy.open("http://localhost:5000/jq/")
       end
     }    
     Watch.new("{content,templates,public}/**/*") { Bonsai::Exporter.process! }

docs/content/1.tutorial/default.yml

@@ -237,5 +237,5 @@ body:
       - - -
 
       Here endeth the tutorial! There's lots more to play with, go
-      read [the manual](../manual) if you're interested, and [download
-      jq](../download) if you haven't already.
+      read [the manual](../manual/) if you're interested, and [download
+      jq](../download/) if you haven't already.

docs/content/index/index.yml

@@ -23,5 +23,5 @@ body3: |
   shorter and simpler than you'd expect.
   
 tail: |
-  Go read the [tutorial](tutorial) for more, or the [manual](manual)
+  Go read the [tutorial](tutorial/) for more, or the [manual](manual/)
   for *way* more.

docs/templates/index.liquid

@@ -18,7 +18,7 @@
               <ul class="dropdown-menu">
                 <li><a href="{{root}}/download/linux64/jq">Linux (64-bit)</a></li>
                 <li><a href="{{root}}/download/osx64/jq">OS X (64-bit)</a></li>
-                <li><a href="{{root}}/download">Other platforms and source</a></li>
+                <li><a href="{{root}}/download/">Other platforms and source</a></li>
               </ul>
             </div>