support nginx stable version to 1.22.0

* test patch for nginx-1.22.0 (all test cases passed)
* update Readme

Author: chobits

README.md

@@ -184,7 +184,7 @@ Select patch
 | 1.15.4 ~ 1.16.x  | YES | [proxy_connect_rewrite_101504.patch](patch/proxy_connect_rewrite_101504.patch) |
 | 1.17.x ~ 1.18.0  | YES | [proxy_connect_rewrite_1018.patch](patch/proxy_connect_rewrite_1018.patch) |
 | 1.19.x ~ 1.21.0  | YES | [proxy_connect_rewrite_1018.patch](patch/proxy_connect_rewrite_1018.patch) |
-| 1.21.1           | YES | [proxy_connect_rewrite_102101.patch](patch/proxy_connect_rewrite_102101.patch) |
+| 1.21.1 ~ 1.22.0  | YES | [proxy_connect_rewrite_102101.patch](patch/proxy_connect_rewrite_102101.patch) |
 
 | OpenResty version | enable REWRITE phase | patch |
 | --: | --: | --: |