FAB-9250 add logos to RTD

Add fabric logo to RTD
add logos for GH, SO, RC etc
fix an erroneous link

Change-Id: Ib53ddd24da7f92a6a36501e67649558433931367
Signed-off-by: Christopher Ferris <chrisfer@us.ibm.com>

Author: christo4ferris

docs/source/_static/css/custom.css

@@ -67,6 +67,13 @@ a:visited {
     width: 100%
 }
 
+.wy-side-nav-search img {
+    display: block;
+    margin: auto auto .809em auto;
+    padding: 5px;
+    border-radius: unset
+}
+
 .wy-side-nav-search input[type=text] {
     border-radius: 5px
 }

docs/source/_static/images/github_button.png

@@ -21,7 +21,10 @@
         {% trans copyright=copyright|e %}© Copyright Hyperledger 2017.{% endtrans %}
       {%- endif %}
     {%- endif %}
-
+    <br>
+      <br />This work is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 International License</a>
+      <a rel="license" href="http://creativecommons.org/licenses/by/4.0/">
+        <img alt="Creative Commons License" src="https://i.creativecommons.org/l/by/4.0/88x31.png" /></a>
     {%- if build_id and build_url %}
       {% trans build_url=build_url, build_id=build_id %}
         <span class="build">

docs/source/_static/images/rocketchat_button.png

@@ -1,11 +1,10 @@
 {% extends "!layout.html" %}
 {% block sidebartitle %}
 {{ super() }}
+<br><img style="background-color: #fff; height: unset; width: unset;" alt="_images/hyperledger_fabric_logo_color.png" src="_images/hyperledger_fabric_logo_color.png" />
 <br>
-<a href="https://chat.hyperledger.org">Rocket Chat</a>  <a href="https://jenkins.hyperledger.org/">CI</a>
-<a href="http://stackoverflow.com/questions/tagged/hyperledger-fabric">StackOverflow</a>
-<br>
-<a rel="license" href="http://creativecommons.org/licenses/by/4.0/">
-  <img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by/4.0/88x31.png" /></a>
-  <br />This work is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 International License</a>.
+<a href="https://github.com/hyperledger/fabric"><img style="padding: 0px; margin: auto auto auto auto;" alt="GitHub" src="_static/images/github_button.png"/></a>
+&nbsp;<a href="https://stackoverflow.com/questions/tagged/hyperledger-fabric"><img style="padding: 0px; margin: auto auto auto auto;" alt="StackOverflow" src="_static/images/stackoverflow_button.png"/></a>
+&nbsp;<a href="https://chat.hyperledger.org"><img style="padding: 0px; margin: auto auto auto auto;" alt="Rocket Chat" src="_static/images/rocketchat_button.png"/></a>
+&nbsp;<a href="https://www.youtube.com/playlist?list=PL0MZ85B_96CH7wvtrRzV7SvtRY0sI0DEg"><img style="padding: 0px; margin: auto auto auto auto;" alt="Youtube Channel" src="_static/images/youtube_button.png"/></a>
 {% endblock %}

docs/source/_static/images/stackoverflow_button.png

@@ -1,5 +1,8 @@
-Welcome to Hyperledger Fabric
-=============================
+Welcome
+=======
+
+.. image:: images/hyperledger_fabric_logo_color.png
+
 
 Hyperledger Fabric is a platform for distributed ledger solutions, underpinned
 by a modular architecture delivering high degrees of confidentiality, resiliency,

docs/source/_static/images/youtube_button.png

@@ -76,7 +76,7 @@ General
 
 :Answer:
   This falls under reconfiguring the network. Please consult the topic on
-  :doc:`configtxlator`.
+  :doc:`commands/configtxlator`.
 
 Solo
 ~~~~
@@ -96,8 +96,8 @@ Kafka
 
 :Answer:
   This is a two step-process:
-  
-  1. Add the node's certificate to the relevant orderer's MSP CRL to prevent peers/clients from connecting to it. 
+
+  1. Add the node's certificate to the relevant orderer's MSP CRL to prevent peers/clients from connecting to it.
   2. Prevent the node from connecting to the Kafka cluster by leveraging standard Kafka access control measures such as TLS CRLs, or firewalling.
 
 ..