[Umbraco] Replace p tags start with root block in TinyMCE Editor

Purpose : Replace <p> to <div>+<br/>

Version: 4.X   ,   File : /config/tinyMceConfig.config

Add TinyMCE configuration key under the <customConfig> element.

<config key="force_p_newlines">false</config>
<config key="force_br_newlines">true</config>    
<config key="forced_root_block">div</config>   

Recycle Application pool.