Incorrect yumi-mc version in README

[globau]

Describe the bug

Following upgrading SpruceUI from 9.0.0+1.21.9 to 9.1.0+1.21.11 my mod no longer starts outside of my development environment:

I updated build.gradle as per the README:

	include modImplementation("dev.lambdaurora:spruceui:9.1.0+1.21.11")
	include("dev.yumi.mc.core:yumi-mc-foundation:1.0.0-alpha.15+1.21.1")

However this resulted in the classic:

Caused by: java.lang.ClassNotFoundException: dev.lambdaurora.spruceui.screen.SpruceScreen
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526)
        at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:239)
        at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526)
        ... 17 more

The version of yumi-mc is incorrect; should be

	include(modImplementation("dev.lambdaurora:spruceui:${project.spruceui_version}"))
	include("dev.yumi.mc.core:yumi-mc-foundation:1.0.0-beta.1+1.21.11")