fix CI node version

Author: Sony Seng

.travis.yml

@@ -1,7 +1,5 @@
 language: node_js
 sudo: false
 node_js:
-  - "6"
-  - "7"
-  - "8"
+  - "10"
   - "node"

README.md

@@ -46,7 +46,7 @@ $ npm install -D json-caching-proxy
 $ json-caching-proxy -u http://remote:8080 -l
 ```
 
-#### Example - Bypassing CORS when proxying to a 3rd party api server
+#### Example - bypassing CORS when proxying to a 3rd party api server
 ```
 $ json-caching-proxy -u http://cors-api.example.com -o localhost:9000 -z
 ```