doc: updated the docs on the limits of subrequests to reflect recent changes in the nginx core.

Author: eaufavor

README.markdown

@@ -4044,7 +4044,7 @@ in gzipped responses that cannot be handled properly in Lua code. Original reque
 
 When the `body` option is not specified and the `always_forward_body` option is false (the default value), the `POST` and `PUT` subrequests will inherit the request bodies of the parent request (if any).
 
-There is a hard-coded upper limit on the number of concurrent subrequests possible for every main request. In older versions of Nginx, the limit was `50` concurrent subrequests and in more recent versions, Nginx `1.1.x` onwards, this was increased to `200` concurrent subrequests. When this limit is exceeded, the following error message is added to the `error.log` file:
+There is a hard-coded upper limit on the number of subrequests possible for every main request. In older versions of Nginx, the limit was `50` concurrent subrequests and in more recent versions, Nginx `1.9.5` onwards, the same limit is changed to limit the depth of recursive subrequests. When this limit is exceeded, the following error message is added to the `error.log` file:
 
 
     [error] 13983#0: *1 subrequests cycle while processing "/uri"

doc/HttpLuaModule.wiki

@@ -3348,7 +3348,7 @@ in gzipped responses that cannot be handled properly in Lua code. Original reque
 
 When the <code>body</code> option is not specified and the <code>always_forward_body</code> option is false (the default value), the <code>POST</code> and <code>PUT</code> subrequests will inherit the request bodies of the parent request (if any).
 
-There is a hard-coded upper limit on the number of concurrent subrequests possible for every main request. In older versions of Nginx, the limit was <code>50</code> concurrent subrequests and in more recent versions, Nginx <code>1.1.x</code> onwards, this was increased to <code>200</code> concurrent subrequests. When this limit is exceeded, the following error message is added to the <code>error.log</code> file:
+There is a hard-coded upper limit on the number of subrequests possible for every main request. In older versions of Nginx, the limit was <code>50</code> concurrent subrequests and in more recent versions, Nginx <code>1.9.5</code> onwards, the same limit is changed to limit the depth of recursive subrequests. When this limit is exceeded, the following error message is added to the <code>error.log</code> file:
 
 <geshi lang="text">
     [error] 13983#0: *1 subrequests cycle while processing "/uri"