Merge pull request chobits#115 from chobits/for_pull_request

updated README.md: updated openresty support to 1.15.8.1

Author: chobits

README.md

@@ -220,11 +220,11 @@ Build OpenResty
 * Build OpenResty with this module from source:
 
 ```bash
-$ wget https://openresty.org/download/openresty-1.13.6.2.tar.gz
-$ tar -zxvf openresty-1.13.6.2.tar.gz
-$ cd openresty-1.13.6.2
+$ wget https://openresty.org/download/openresty-1.15.8.1.tar.gz
+$ tar -zxvf openresty-1.15.8.1.tar.gz
+$ cd openresty-1.15.8.1
 $ ./configure --add-module=/path/to/ngx_http_proxy_connect_module
-$ patch -d build/nginx-1.13.6/ -p 1 < /path/to/ngx_http_proxy_connect_module/patch/proxy_connect_rewrite_1014.patch
+$ patch -d build/nginx-1.15.8/ -p 1 < /path/to/ngx_http_proxy_connect_module/patch/proxy_connect_rewrite_101504.patch
 $ make && make install
 ```
 
@@ -411,7 +411,7 @@ OpenResty Compatibility
 The latest module is compatible with the following versions of OpenResty:
 
 * 1.13.6 (version: 1.13.6.2)
-* 1.15.8 (version: 1.15.8.1rc1)
+* 1.15.8 (version: 1.15.8.1)
 
 Tengine Compatibility
 ---------------------