chore(changelog): add startPrank changes to changelog, conform to sta…

…ndard (#4953)

CHANGELOG.md

@@ -1,3 +1,5 @@
+# Changelog
+
 ## Pre 1.0
 
 ### Important note for users
@@ -26,6 +28,7 @@ To use the latest pinned nightly on your CI, modify your Foundry installation st
 - [expectEmit](https://github.com/foundry-rs/foundry/pull/4920) will now only work for the next call.
 - expectCall will now only work if the call(s) are made exactly after the cheatcode is invoked.
 - expectRevert will now work if the next call does revert, instead of expecting a revert during the whole test.
+- [startPrank will now override the existing prank instead of erroring](https://github.com/foundry-rs/foundry/pull/4826).
 - [precompiles will not be compatible with all cheatcodes](https://github.com/foundry-rs/foundry/pull/4905).
 - The difficulty and prevrandao cheatcodes now [fail if not used with the correct EVM version](https://github.com/foundry-rs/foundry/pull/4904).
 - The default EVM version will be Shanghai. If you're using an EVM chain which is not compatible with [EIP-3855](https://eips.ethereum.org/EIPS/eip-3855) you need to change your EVM version. See [Matt Solomon's thread](https://twitter.com/msolomon44/status/1656411871635972096) for more information.