Update readme and release notes

readme

@@ -1,18 +0,0 @@
-Add Sub module
---------------
-git submodule add https://github.com/thilinah/isotope-core.git src
-
-Remove Sub Module
------------------
-git submodule deinit src
-git rm src
-git rm --cached src
-rm -rf .git/modules/src
-
-//TODO - Add other modules also
-
-Errors while pushing code for sub module
-
-git remote set-url origin https://<user>@github.com/thilinah/isotope-core.git
-
-<user> must have rights to push code to the repo

readme.md

@@ -42,10 +42,10 @@ Setup IceHrm Development Environment
 ------------------------------------
 
 IceHrm development environment is packaged as a Vagrant box. I includes php7, nginx, phpunit and other
-software required for runing icehrm
+software required for running icehrm
 
-Preparing development VM
+Preparing development VM with Vagrant
-------------------------
+-------------------------------------
 
 - Clone icehrm from https://github.com/gamonoid/icehrm.git or download the source
 

release.md

@@ -1,7 +1,16 @@
-Release note v19.0
+Release note v20.0
 ------------------
 ### Features
  * Payroll Module
+ * Compatible with MySQL 5.7 Strict Mode
+ * Name spaced Classes
+ 
+### Fixes
+  * Fix: limiting selectable countries via Settings
+
+Release note v19.0
+------------------
+### Features
  * Development environment
  * Overtime module
  * Department heads who can manage all employees attached to a company structure
@@ -354,4 +363,4 @@ Release note v4.1
 * Fix company structure graph issues
 * Allow icehrm client to work without an internet connection
 * Fix installer incorrect base url issue
-* Fix empty user creation issue
+* Fix empty user creation issue