Update README.md

README.md

@@ -5,6 +5,8 @@ Hit counter: [![HitCount](http://hits.dwyl.io/BlockHorizons/FactionsPE.svg)](htt
 ### Installing
 This plugin has not yet been approved on Poggit.
 
+Your server must be running on PHP v7.4
+
 #### Running from Phar file
 Grab the latest .phar file from release section and insert into your server's plugin folder. After, restart the server. See more detailed instructions [at the wiki](https://github.com/BlockHorizons/FactionsPE/wiki/Installation) :+1:
 
@@ -22,4 +24,4 @@ API methods and examples can be found [at the wiki](https://github.com/BlockHori
 ### Third-party libraries
 + [Localizer](https://github.com/Kris-Driv/Localizer)
 + [Economizer](https://github.com/Kris-Driv/Economizer)
-+ [Dominate](https://github.com/Kris-Driv/Dominate)
++ [Dominate](https://github.com/Kris-Driv/Dominate)