doc: sync config.yaml from the latest version of APISIX (#344)

compose/README.md

@@ -5,6 +5,9 @@ $ cd incubator-apisix-dashboard/compose
 
 $ chmod +x ./manager_conf/build.sh
 
+$ chmod +x gen-config-yaml.sh
+$ sh gen-config-yaml.sh
+
 # For most users in China, please use some proxy services like https://www.daocloud.io/mirror to speed up your Docker images pulling.
 $ docker-compose -p dashboard up -d
 ```

compose/gen-config-yaml.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+export etcd_url='http://192.17.5.10:2379'
+
+wget https://raw.githubusercontent.com/apache/incubator-apisix/master/conf/config.yaml
+
+sed -i -e ':a' -e 'N' -e '$!ba' -e "s/allow_admin[a-z: #\/._]*\n\( *- [0-9a-zA-Z: #\/._',]*\n*\)*//g" config.yaml
+
+sed -i -e "s%http://[0-9.]*:2379%`echo $etcd_url`%g" config.yaml
+
+mv config.yaml ./apisix_conf/config.yaml