Sync sphinx build config with ndn-cxx, improve README.md

Change-Id: Ib47bbe35f41b3a23523c0f66d7e5f321d7f82c2e
diff --git a/README.md b/README.md
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@@ -1,25 +1,38 @@
 # NDN Essential Tools
 
+![Language](https://img.shields.io/badge/C%2B%2B-14-blue.svg)
 [![Build Status](https://travis-ci.org/named-data/ndn-tools.svg?branch=master)](https://travis-ci.org/named-data/ndn-tools)
+![Latest Version](https://img.shields.io/github/tag/named-data/ndn-tools.svg?color=darkkhaki&label=latest%20version)
 
-**ndn-tools** is a collection of essential tools for
-[Named Data Networking](http://named-data.net/).
-These tools are recommended to be installed on all NDN nodes.  
+**ndn-tools** is a collection of basic tools for [Named Data Networking](https://named-data.net/).
 Tools in this collection include:
 
-* [peek](tools/peek): transmit a single packet between a consumer and a producer
-* [chunks](tools/chunks): segmented file transfer between a consumer and producer
-* [ping](tools/ping): test reachability between two nodes
-* [dump](tools/dump): analyze traffic on wire
-* [dissect](tools/dissect): inspect TLV structure of NDN packet format
-* [dissect-wireshark](tools/dissect-wireshark): Wireshark extension to inspect TLV structure of NDN
-  packets
+* [peek](tools/peek): transmit a single Interest/Data packet between a consumer
+  and a producer
+* [chunks](tools/chunks): segmented file transfer between a consumer and a producer
+* [ping](tools/ping): test reachability between two NDN nodes
+* [dump](tools/dump): capture and analyze live traffic on an NDN network
+* [dissect](tools/dissect): inspect the TLV structure of an NDN packet
+* [dissect-wireshark](tools/dissect-wireshark): Wireshark extension to inspect
+  the TLV structure of NDN packets
 
-See [INSTALL.md](INSTALL.md) for build instructions.
+## Installation
 
-If you are new to the NDN software community, please read the
-[Contributor's Guide](https://github.com/named-data/NFD/blob/master/CONTRIBUTING.md).  
-Please file bug reports and feature requests on
-[ndn-tools Redmine site](https://redmine.named-data.net/projects/ndn-tools).  
-You may contribute code on [NDN Gerrit](https://gerrit.named-data.net).
-GitHub pull requests are not accepted.
+See [`INSTALL.md`](INSTALL.md) for build instructions.
+
+## Reporting bugs
+
+Please submit any bug reports or feature requests to the
+[ndn-tools issue tracker](https://redmine.named-data.net/projects/ndn-tools/issues).
+
+## Contributing
+
+You're encouraged to contribute to ndn-tools!  If you are new to the NDN
+software community, please read [`README-dev.md`](README-dev.md) and the
+[Contributor's Guide](https://github.com/named-data/NFD/blob/master/CONTRIBUTING.md)
+to get started.
+
+## License
+
+ndn-tools is an open source project licensed under the GPL version 3.
+See [`COPYING.md`](COPYING.md) for more information.