add travis gh-pages updating, and gitter badge

.travis.yml

@@ -27,4 +27,14 @@ before_install:
 
 script:
   - npm test
-  - cd examples; make build.all
+  - npm run build-demo
+  - cd examples; make build.all; cd ..
+
+deploy:
+  provider: pages
+  skip_cleanup: true
+  github_token:
+    secure: "qhyBDZ7DIA1ai2VPCGUjPHbeYx6FZNNC68n/u/i2qJR0/Bo3UMTYqEYOL622KANPnPwWAxSNsrrkB4J8C/BQuaN8/yUKZU6ReD5L5hMzQsEUtLfy+V3TsogT4TwZQLVOBExemA/hQOadC1qTeoeHqhp5wQ1PZfR9Vm6BI8KdJfK83j5mMHCbJyPPz7a1TFeNOnylLh+i/NbTl9HXMAkAj2VdsQRM5qKoqa+qpImnh9gPKSSvhSw4VSh8uw19Nxi3Y63tt/z1ZxznZd9OX9hmJmCkkQPuBoCMwf6Ql+NafmB/mHmquW/3eURC2lmaBcLHG2iTLIbQrOEyD0nnsfOL2IMiKRYUFq0mdTG43+98QEfLf50uaZNIjjzDT0qJPBDZfSXeEtIxZB4uUHZ79EIQlup/Q8LmHpNtYPsM19KG8gSHHiG7MwKahn1GUfiE2/BEdVOeJQEmcCYDKUHdWRicN9RDH1qHlFPG5Spc7rIjEgmZNq5ELQ8VJCG3eXkNVRgrK8lQJ6A2bUvR6n+On1kgV3bUcWiFzA+gVcDovDVhjC2KBty05XwnOgE+CmmQvQ4F8eSsssekd9gFCql6w9H/ZvaTxenrjRMMJ/4ymT/l+En8bFBXzPsTSd/QnE1BS8wVNkGsC9LppUkJWsOrfD6dkj86hbuEEOMWutLj03E7mBQ="
+  on:
+    branch: master
+    node: "6"

README.md

@@ -1,4 +1,5 @@
 [![Build Status](https://travis-ci.org/nturley/netlistsvg.svg?branch=master)](https://travis-ci.org/nturley/netlistsvg)
+[![Gitter chat](https://badges.gitter.im/nturley/netlistsvg.png)](https://gitter.im/netlistsvg)
 # netlistsvg
 draws an SVG schematic from a [yosys](https://github.com/cliffordwolf/yosys) JSON netlist. It uses [klayjs](https://github.com/OpenKieler/klayjs) for layout.
 <details>