diff --git a/README.md b/README.md
index 7106dffe..64fad27c 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,11 @@ This GitHub Action automatically checks for typos in the files changed in a pull
 
 ## Usage
 
+> [!NOTE]
+> If you want GitHub Actions to approve PRs, you must grant permission to it at: project settings -> Actions -> General -> Allow GitHub Actions to create and approve pull requests.
+
+![Typocop Logo](typocop-approval.png)
+
 1. **Using Typocop GitHub Action:**
 
     1. Copy the `.github/workflows/typocop.yml` file into your project repository.
@@ -70,7 +75,7 @@ This GitHub Action automatically checks for typos in the files changed in a pull
     ```bash
     gem install typocop # install
 
-    GITHUB_TOKEN=your_token PULL_REQUEST_ID=your_pull_request_id typocop execute # run action
+    GITHUB_TOKEN=your_token PULL_REQUEST_ID=the_request_id GITHUB_BASE_REF=branch_base_name typocop execute # run action
     ```
 
     ![Typocop demo](typocop.gif "")
diff --git a/lib/typocop.rb b/lib/typocop.rb
index 91870dbf..9aa67802 100644
--- a/lib/typocop.rb
+++ b/lib/typocop.rb
@@ -11,25 +11,27 @@
 require 'typocop/repo'
 require 'typo_checker'
 
-GITHUB_TOKEN = ENV['GITHUB_TOKEN'] || ''
-PULL_ID = ENV['PULL_REQUEST_ID']
-GITHUB_BASE_REF = ENV['GITHUB_BASE_REF'] || 'main'
+GITHUB_TOKEN = ENV.fetch('GITHUB_TOKEN') { raise 'GITHUB_TOKEN is required' }
+PULL_ID = ENV.fetch('PULL_REQUEST_ID') { raise 'PULL_REQUEST_ID is required' }
+GITHUB_BASE_REF = ENV.fetch('GITHUB_BASE_REF') { raise 'GITHUB_BASE_REF is required' }
 BASE_BRANCH = GITHUB_BASE_REF.start_with?('origin/') ? GITHUB_BASE_REF : "origin/#{GITHUB_BASE_REF}"
 
 module Typocop
   def self.execute(settings)
+    repo = Repo.new
+    paths = repo.patch_additions.map(&:path)
+
+    return unless paths.any?
+
     excludes = settings.excludes
     skips = settings.skips
-    typo_checker = TypoChecker::Checker.new(excludes, skips, stdoutput = false)
+    typo_checker = TypoChecker::Checker.new(paths: paths, excludes: excludes, skips: skips, stdoutput: false)
     found_typos = typo_checker.scan_repo('.')
 
-    if found_typos.empty?
-      puts 'No typos.'
-    else
-      cops = Cops.new(found_typos)
-      repo = Repo.new
-      client = Client.new(repo)
-      client.execute(cops.cops)
-    end
+    puts 'No typos found' if found_typos.empty?
+
+    cops = Cops.new(found_typos)
+    client = Client.new(repo)
+    client.execute(cops.cops)
   end
 end
diff --git a/lib/typocop/client.rb b/lib/typocop/client.rb
index 0a5d1f76..6e4a9c0b 100644
--- a/lib/typocop/client.rb
+++ b/lib/typocop/client.rb
@@ -99,7 +99,7 @@ def suggestion_comment(typos)
     end
 
     def line_content(cop)
-      patch = @repo.patch_additions.find { |patch| patch.path == cop.path }
+      patch = @repo.patch_additions.find { |p| p.path == cop.path }
       patch.added_lines.find { |line| line.new_lineno == cop.line }.content
     end
 
diff --git a/lib/typocop/settings.rb b/lib/typocop/settings.rb
index f700c20b..e51f13b0 100644
--- a/lib/typocop/settings.rb
+++ b/lib/typocop/settings.rb
@@ -13,12 +13,10 @@ def initialize(setting_path)
     private
 
     def load_settings(setting_path)
-      begin
-        YAML.load_file(setting_path)
-      rescue StandardError => e
-        puts "Error loading YAML file: #{e.message}"
-        return {}
-      end
+      YAML.load_file(setting_path)
+    rescue StandardError => e
+      puts "Error loading YAML file: #{e.message}"
+      {}
     end
   end
 end
diff --git a/lib/typocop/version.rb b/lib/typocop/version.rb
index 583ada2d..fdca804b 100644
--- a/lib/typocop/version.rb
+++ b/lib/typocop/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Typocop
-  VERSION = '0.1.3'
+  VERSION = '0.1.4'
 end
diff --git a/test/example.js b/test/example.js
deleted file mode 100644
index b8ee69be..00000000
--- a/test/example.js
+++ /dev/null
@@ -1,3 +0,0 @@
-var languege = 'en' // typo
-console.log(languege) // typo
-console.log('welcom') // typo
diff --git a/test/example.py b/test/example.py
deleted file mode 100644
index a994b620..00000000
--- a/test/example.py
+++ /dev/null
@@ -1,26 +0,0 @@
-def greet(name):
-    print(f"Hello, {name}! Welcome to Python programming.")
-
-def factorial(n):
-    if n == 0 or n == 1:
-        return 1
-    else:
-        result = 1
-        for i in range(2, n + 1):
-            result *= i
-        return result
-
-numbers = [5, 3, 8, 10]
-
-for number in numbers:
-    print(f"Factorial of {number} is: {factorial(number)}")
-
-user_name = input("Enter your name: ")
-
-greet(user_name)
-
-age = int(input("Enter your age: "))
-if age >= 18:
-    print("You are elligible for an adult privilege.") # typo
-else:
-    print("You are underage, so no adult privileges for you.")
diff --git a/test/example.rb b/test/example.rb
deleted file mode 100644
index d192aa55..00000000
--- a/test/example.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-def greeting(name)
-  puts "Hello, #{name}! Welocome to the Ruby typos test."
-  puts 'languege' # typo
-  puts 'knowlege' # typo
-  puts 'knowlege: languege' # typo
-  puts 'welcom'
-end
-
-greeting('Alice')
diff --git a/typocop-approval.png b/typocop-approval.png
new file mode 100644
index 00000000..106505cd
Binary files /dev/null and b/typocop-approval.png differ
diff --git a/typocop.gemspec b/typocop.gemspec
index 2e11b548..057df003 100644
--- a/typocop.gemspec
+++ b/typocop.gemspec
@@ -18,7 +18,7 @@ Gem::Specification.new do |s|
   s.add_dependency 'octokit', '9.2.0'
   s.add_dependency 'rugged', '~> 1.6.3'
   s.add_dependency 'thor', '~> 1.3.2'
-  s.add_dependency 'typo_checker', '0.1.7'
+  s.add_dependency 'typo_checker'
   s.executables = %w[typocop]
   s.files.each do |file|
     next unless file.start_with?('bin/')