Fix a few nav errors

Author: Martin Taillefer

_includes/footer.html

@@ -7,7 +7,7 @@
             <div class="col-md-3 col-sm-3 col-xs-12 footer-documentation">
                 <ul class="toggle">
                     <p class="right-link-headers">Docs</p>
-                    <li><a href="{{ site.baseurl }}/docs/"><p>Home</p></a></li>
+                    <li><a href="{{ site.baseurl }}/docs/"><p>Welcome</p></a></li>
 		            <li><a href="{{ site.baseurl }}/docs/concepts"><p>Concepts</p></a></li>
                     <li><a href="{{ site.baseurl }}/docs/tasks"><p>Tasks</p></a></li>
                     <!--

_includes/nav.html

@@ -31,14 +31,14 @@
 
   <div class="top-nav right">
     {% assign current = page.url | downcase | split: '/' %}
-    <li class="nav-item"><a href="{{ site.baseurl }}/"><p>Home</p></a><div class="nav-toggle icon-close"></div></li>
+    <li class="nav-item"><a href="{{ site.baseurl }}/"><p>Welcome</p></a><div class="nav-toggle icon-close"></div></li>
     <hr>
     <li class="nav-item"><a href="{{ site.baseurl }}/about/" {% if current[1] == 'about' %}class='current'{% endif %}><p>About</p></a></li>
     <hr>
     <li class="nav-item"><a href="{{ site.baseurl }}/docs/" {% if current[1] == 'docs' %}class='current'{% endif %}><p>Docs</p></a>
       <div class="nav-doc-toggle icon-caret"></div>
       <ul class="doc-list">
-        <a href="{{ site.baseurl }}/docs" {% if page.path == 'docs/index.html' %}class='current'{% endif %}><li class="nav-doc-tab">Home</li></a>
+        <a href="{{ site.baseurl }}/docs" {% if page.path == 'docs/index.html' %}class='current'{% endif %}><li class="nav-doc-tab">Welcome</li></a>
         <a href="{{ site.baseurl }}/docs/concepts" {% if current[2] == 'concepts' %}class='current'{% endif %}><li class="nav-doc-tab">Concepts</li></a>
         <a href="{{ site.baseurl }}/docs/tasks" {% if current[2] == 'tasks' %}class='current'{% endif %}><li class="nav-doc-tab">Tasks</li></a>
 <!--

_includes/sticky-nav.html

@@ -31,14 +31,14 @@
 
   <div class="top-nav right">
     {% assign current = page.url | downcase | split: '/' %}
-    <li class="nav-item"><a href="{{ site.baseurl }}/"><p>Home</p></a><div class="nav-toggle icon-close"></div></li>
+    <li class="nav-item"><a href="{{ site.baseurl }}/"><p>Welcome</p></a><div class="nav-toggle icon-close"></div></li>
     <hr>
     <li class="nav-item"><a href="{{ site.baseurl }}/about/" {% if current[1] == 'about' %}class='current'{% endif %}><p>About</p></a></li>
     <hr>
     <li class="nav-item"><a href="{{ site.baseurl }}/docs/" {% if current[1] == 'docs' %}class='current'{% endif %}><p>Docs</p></a>
       <div class="nav-doc-toggle icon-caret"></div>
       <ul class="doc-list">
-        <a href="{{ site.baseurl }}/docs" {% if page.path == 'docs/index.html' %}class='current'{% endif %}><li class="nav-doc-tab">Home</li></a>
+        <a href="{{ site.baseurl }}/docs" {% if page.path == 'docs/index.html' %}class='current'{% endif %}><li class="nav-doc-tab">Welcome</li></a>
         <a href="{{ site.baseurl }}/docs/concepts" {% if current[2] == 'concepts' %}class='current'{% endif %}><li class="nav-doc-tab">Concepts</li></a>
         <a href="{{ site.baseurl }}/docs/tasks" {% if current[2] == 'tasks' %}class='current'{% endif %}><li class="nav-doc-tab">Tasks</li></a>
 <!--

docs/concepts/mixer-config.md

@@ -422,7 +422,7 @@ evaluate the current request.
 
 ### Manifests
 
-Manifests are used to capture invariants about the components involved in a particular Istio deployment. The only
+Manifests capture invariants about the components involved in a particular Istio deployment. The only
 kind of manifest supported at the moment are *attribute manifests* which are used to define the exact
 set of attributes produced by individual components. Manifests are supplied by component producers
 and inserted into a deployment's configuration.

docs/index.md

@@ -1,12 +1,14 @@
 ---
 title: Docs
-headline: Documentation Home
+headline: Welcome
 sidenav: doc-side-home-nav.html
 bodyclass: docs
 layout: docs
 type: markdown
 ---
 
+# Welcome
+
 Welcome to Istio's documentation home page. From here you can learn all about Istio by following
 the links below: