docs: update readme compat info

Author: zkat

CHANGELOG.md

@@ -1,7 +1,7 @@
 # `big-brain` Release Changelog
 
-<a name="0.21.0"></a>
-## 0.21.0 (2024-07-09)
+<a name="0.21.1"></a>
+## 0.21.1 (2024-07-09)
 
 This is just a patch release because of a hiccup during the release process for 0.21.1, but is otherwise identical.
 

README.md

@@ -129,7 +129,7 @@ fn main() {
 
 #### bevy version and MSRV
 
-The current version of `big-brain` is compatible with `bevy` 0.12.1.
+The current version of `big-brain` is compatible with `bevy` 0.14.0.
 
 The Minimum Supported Rust Version for `big-brain` should be considered to
 be the same as `bevy`'s, which as of the time of this writing was "the