docs: fix typo

Author: bmish

CHANGELOG.md

@@ -8,8 +8,7 @@
 * drop Node 12/17 support ([#256](https://github.com/not-an-aardvark/eslint-plugin-eslint-plugin/issues/256))
 * drop ESLint v6 support ([#257](https://github.com/not-an-aardvark/eslint-plugin-eslint-plugin/issues/257))
 * strictly define Node API ([#259](https://github.com/not-an-aardvark/eslint-plugin-eslint-plugin/issues/259))
-* add `recommended` rules `prefer-message-ids`, `prefer-output-null`, `no-missing-message-id
-s`, `no-unused-message-ids` ([#258](https://github.com/not-an-aardvark/eslint-plugin-eslint-plugin/issues/258))
+* add `recommended` rules `prefer-message-ids`, `prefer-output-null`, `no-missing-message-ids`, `no-unused-message-ids` ([#258](https://github.com/not-an-aardvark/eslint-plugin-eslint-plugin/issues/258))
 * Update `no-missing-placeholders` and `no-unused-placeholders` to handle messageIds ([#252](https://github.com/not-an-aardvark/eslint-plugin-eslint-plugin/issues/252))
 
 ### Features
@@ -533,4 +532,4 @@ s`, `no-unused-message-ids` ([#258](https://github.com/not-an-aardvark/eslint-pl
 
 - New: no-deprecated-report-api rule [`06a6e5a`](https://github.com/not-an-aardvark/eslint-plugin-eslint-plugin/commit/06a6e5ae81328ba37e8360ca5ad7498939059031)
 - New: initial commit [`8b0ae4f`](https://github.com/not-an-aardvark/eslint-plugin-eslint-plugin/commit/8b0ae4f30014e9526af02ecba518f5edfd38c2b9)
-- New: Add a 'recommended' config [`7b9ec01`](https://github.com/not-an-aardvark/eslint-plugin-eslint-plugin/commit/7b9ec012286f4c16af27e79db7e449916c56c3c6)
+- New: Add a 'recommended' config [`7b9ec01`](https://github.com/not-an-aardvark/eslint-plugin-eslint-plugin/commit/7b9ec012286f4c16af27e79db7e449916c56c3c6)