Add guide on how to edit site, various tweaks.

Change-Id: Iadb5074e130d4a42b2af123fa405e9fc21a14aed
Reviewed-on: https://asterix-gerrit.ics.uci.edu/541
Reviewed-by: Till Westmann <tillw@apache.org>
diff --git a/content/tools.html b/content/tools.html
index 92500b8..0d85a92 100644
--- a/content/tools.html
+++ b/content/tools.html
@@ -7,16 +7,16 @@
     <!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
     <meta name="description" content="">
     <meta name="author" content="">
-    <link rel="icon" href="https://asterixdb.incubator.apache.org/favicon.ico">
+    <link rel="icon" href="favicon.ico">
 
     <title>Tools</title>
 
     <!-- Bootstrap core CSS -->
-    <link href="https://asterixdb.incubator.apache.org/css/bootstrap.min.css" rel="stylesheet">
+    <link href="css/bootstrap.min.css" rel="stylesheet">
     <!-- Bootstrap theme -->
 
     <!-- Custom styles for this template -->
-    <link href="https://asterixdb.incubator.apache.org/css/theme.css" rel="stylesheet">
+    <link href="css/theme.css" rel="stylesheet">
 
     <!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
     <!--[if lt IE 9]>
@@ -29,7 +29,7 @@
   <div class="container theme-showcase" role="main">
   <div class="masthead">
     <p class="lead">
-        <a href="https://asterixdb.incubator.apache.org/index.html"><img src="https://asterixdb.incubator.apache.org/img/asterixdb.png" style="height:75px; width:auto; vertical-align:bottom; margin-top:10px;"/></a>
+        <a href="index.html"><img src="img/asterixdb.png" style="height:75px; width:auto; vertical-align:bottom; margin-top:10px;"/></a>
     </p>
 </div>
 
@@ -42,11 +42,11 @@
               <span class="icon-bar"></span>
               <span class="icon-bar"></span>
             </button>
-            <a class="navbar-brand" href="https://asterixdb.incubator.apache.org/index.html">Overview</a>
+            <a class="navbar-brand" href="index.html">Overview</a>
           </div>
           <div class="navbar-collapse collapse">
             <ul class="nav navbar-nav">
-              <li><a href="https://asterixdb.incubator.apache.org/download.html">Download</a></li>
+              <li><a href="download.html">Download</a></li>
               <li class="dropdown">
                 <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">Documentation<span class="caret"></span></a>
                 <ul class="dropdown-menu" role="menu">
@@ -57,16 +57,17 @@
                   <li><a href="https://ci.apache.org/projects/asterixdb/index.html">Documentation for 0.8.8-SNAPSHOT  <i class="fa fa-external-link fa-sm"></i></a></li>
                 </ul>
               </li>
-              <li><a href="https://asterixdb.incubator.apache.org/about.html">About</a></li>
-              <li><a href="https://asterixdb.incubator.apache.org/community.html">Community</a></li>
+              <li><a href="about.html">About</a></li>
+              <li><a href="community.html">Community</a></li>
               <li class="dropdown">
                 <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">Contributing <span class="caret"></span></a>
                 <ul class="dropdown-menu" role="menu">
                   <li class="dropdown-header">For New Contributors</li>
-                  <li><a href="https://asterixdb.incubator.apache.org/dev-setup.html">Development Setup</a></li>
+                  <li><a href="dev-setup.html">Development Setup</a></li>
                   <li class="divider"></li>
                   <li class="dropdown-header">For Committers</li>
-                  <li><a href="https://asterixdb.incubator.apache.org/pushing.html">Pushing changes</a></li>
+                  <li><a href="pushing.html">Pushing changes</a></li>
+                  <li><a href="site.html">Editing this site</a></li>
                 </ul>
               </li>
             </ul>
@@ -87,7 +88,7 @@
 <h3 id="apache-tools">Apache Tools</h3>
 
 <p>|———————————————————————————–|——————-|
-|<img src="https://asterixdb.incubator.apache.org//img/tools/maven.png" height="100" />     |      |</p>
+|<img src="/img/tools/maven.png" height="100" />     |      |</p>
 <hr />
 
 <h4 id="open-source-tools">Open Source Tools</h4>
@@ -95,11 +96,11 @@
 <table class="table table-striped">
   <tbody>
     <tr>
-      <td><img src="https://asterixdb.incubator.apache.org//img/tools/jenkins.png" height="100" /></td>
+      <td><img src="/img/tools/jenkins.png" height="100" /></td>
       <td> </td>
     </tr>
     <tr>
-      <td><img src="https://asterixdb.incubator.apache.org//img/tools/gerrit.png" height="100" /></td>
+      <td><img src="/img/tools/gerrit.png" height="100" /></td>
       <td>Gerrit is used by the majority of developers as a staging repository for new changes and as a code review tool</td>
     </tr>
   </tbody>
@@ -112,11 +113,11 @@
 <table class="table table-striped">
   <tbody>
     <tr>
-      <td><img src="https://asterixdb.incubator.apache.org//img/tools/yourkit.png" height="100" /></td>
+      <td><img src="/img/tools/yourkit.png" height="100" /></td>
       <td>YourKit whenever a hard to</td>
     </tr>
     <tr>
-      <td><img src="https://asterixdb.incubator.apache.org//img/tools/intellij.png" height="100" /></td>
+      <td><img src="/img/tools/intellij.png" height="100" /></td>
       <td> </td>
     </tr>
   </tbody>
@@ -135,7 +136,7 @@
         <p>Apache AsterixDB, Apache, and the Apache feather logo are trademarks of the Apache Software Foundation</p>
         </div>
         <div class="col-md-1 text-right">
-        <img src="https://asterixdb.incubator.apache.org/img/egg-logo.png" style="height:auto; width:200px; vertical-align:bottom;"/>
+        <img src="img/egg-logo.png" style="height:auto; width:200px; vertical-align:bottom;"/>
         </div>
         </div>
    </footer>
@@ -146,6 +147,6 @@
     ================================================== -->
     <!-- Placed at the end of the document so the pages load faster -->
     <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
-    <script src="https://asterixdb.incubator.apache.org/js/bootstrap.min.js"></script>
+    <script src="js/bootstrap.min.js"></script>
   </body>
 </html>