docs: removes commitDepth Info from readme

action.yml

@@ -3,7 +3,8 @@ description: Lints Pull Request commit messages with commitlint
 author: Wagner Santos
 inputs:
   configFile:
-    description: Commitlint config file. If the file doesn't exist, config-conventional settings will be
+    description:
+      Commitlint config file. If the file doesn't exist, config-conventional settings will be
       loaded as a fallback.
     default: ./commitlint.config.js
     required: false
@@ -12,16 +13,20 @@ inputs:
       When set to true, we follow only the first parent commit when seeing a merge commit.
       More info in git-log docs
       https://git-scm.com/docs/git-log#Documentation/git-log.txt---first-parent
-    default: "true"
+    default: 'true'
     required: false
   failOnWarnings:
     description: Whether you want to fail on warnings or not
-    default: "false"
+    default: 'false'
     required: false
   helpURL:
     description: Link to a page explaining your commit message convention
     default: https://github.com/conventional-changelog/commitlint/#what-is-commitlint
     required: false
+  commitDepth:
+    description: When set to a valid Integer value - X, considers only the latest X number of commits.
+    default: ''
+    required: false
   token:
     description: >
       Personal access token (PAT) used to interact with the GitHub API. By default, the