update readme wp + php version

readme.txt

@@ -3,7 +3,7 @@ Contributors: podpirate
 Donate link: https://www.msf.org/donate
 Tags: acf, quickedit, columns, bulk edit
 Requires at least: 4.7
-Tested up to: 5.7
+Tested up to: 5.8
 Requires PHP: 5.6
 Stable tag: 3.1.4
 License: GPLv2 or later
@@ -85,6 +85,9 @@ On the whole upgrading is always a good idea.
 
 == Changelog ==
 
+= 3.1.5 =
+ - Added Basic support for User field in quick and bulk
+
 = 3.1.4 =
  - Introduce filter `acf_qef_capability`
  - Fix: User columns not being displayed