Fixed typing errors (#33778)

CHANGELOG.md

@@ -4,7 +4,7 @@ All notable changes to this project will be documented in this file.
 Please follow the [guidance](#adding-to-this-changelog) at the bottom of this file when making changes
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html)
-and follows a [Backwards Compatability Policy](https://docs.solana.com/developing/backwards-compatibility)
+and follows a [Backwards Compatibility Policy](https://docs.solana.com/developing/backwards-compatibility)
 
 Release channels have their own copy of this changelog:
 * [edge - v1.18](#edge-channel)

CONTRIBUTING.md

@@ -159,7 +159,7 @@ New feature gates should also always have a corresponding tracking issue
 and should be updated each time the feature is activated on a cluster.
 
 * "automerge": When a PR is labelled with "automerge", the PR will be
-automically merged once CI passes.  In general, this label should only
+automatically merged once CI passes.  In general, this label should only
 be used for small hot-fix (fewer than 100 lines) or automatic generated
 PRs.  If you're uncertain, it's usually the case that the PR is not
 qualified as "automerge".

SECURITY.md

@@ -114,7 +114,7 @@ $400,000 USD in locked SOL tokens (locked for 12 months)
 
 #### DoS Attacks:
 $100,000 USD in locked SOL tokens (locked for 12 months)
-* Remote resource exaustion via Non-RPC protocols
+* Remote resource exhaustion via Non-RPC protocols
 
 #### Supply Chain Attacks:
 $100,000 USD in locked SOL tokens (locked for 12 months)