Removed MF 5 upgrade instructions from README (#1812)

README.md

@@ -5,40 +5,14 @@ Medieval Factions is a system of mechanics that allows for the simulation of sov
 
 A list of features can be found [here](https://github.com/dmccoystephenson/Medieval-Factions/wiki/Features).
 
-### Fifth Major Version - MF 5
-Medieval Factions 5 reimagines and reworks everything about the plugin. The development of the fifth major version of MF was led by [alyphen](https://github.com/alyphen) (creator of [RPKit](https://github.com/RP-Kit/RPKit/wiki)). Huge thanks to her!
-
-#### What's changed
-This is a complete rewrite of Medieval Factions so everything has received a fresh coat of paint since 4.6.x/4.7.x. Commands, permissions, placeholders, etc should mostly be compatible, though some things have changed, such as locks, roles, and force commands.
+The development of the fifth major version of MF was led by [alyphen](https://github.com/alyphen) (creator of [RPKit](https://github.com/RP-Kit/RPKit/wiki)). Huge thanks to her!
 
 ## Installation
 ### First Time Installation
 1) You can download the plugin from [this page](https://www.spigotmc.org/resources/medieval-factions-sovereign-nation-simulator.79941/updates).
 2) Once downloaded, place the jar in the plugins folder of your server files.
 3) Restart your server.
 
-### Upgrading from Medieval Factions 4
-
-1. If you have a Medieval Factions 4 install, replace the Medieval Factions 4 jar with Medieval Factions 5.
-
-2. On the next start, Medieval Factions 5 will detect the Medieval Factions 4 config and make a backup of all of the data in mf4_backup in the data folder. It will then proceed to generate the new config file, and shut down the server.
-
-3. At this point, you should configure your database, if you have one.
-
-If you have MySQL or MariaDB database, this should look something like:
-
-```
-database:
-url: 'jdbc:mysql://127.0.0.1/database'
-dialect: 'MYSQL'
-username: 'username'
-password: 'password'
-```
-
-If you do not have a MySQL database, you can ignore this, as the plugin will create an h2 file-based database in your server's working directory.
-
-4. Start the server one more time, and the configuration and data from the Medieval Factions 4 backup will be migrated to your new Medieval Factions 5 install.
-
 ### Dynmap Integration
 Dynmap has been integrated with this plugin. In order to be able to view claimed land on a dynamic map, download and install the plugin [here](https://www.spigotmc.org/resources/dynmap.274/).