diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index ba0f4e6..0d6097e 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -2,9 +2,9 @@ name: CI
 
 on:
   push:
-    branches: [ master ]
+    branches: [master]
   pull_request:
-    branches: [ master ]
+    branches: [master]
 
 jobs:
   build:
@@ -14,7 +14,7 @@ jobs:
         python-version: ["3.8", "3.9", "3.10"]
 
     steps:
-      - name: Checkout sources
+      - name: Checkout source code
         uses: actions/checkout@v2
 
       - name: Setup Python
diff --git a/.github/workflows/publish.yaml b/.github/workflows/publish.yaml
index 992a6e9..db55992 100644
--- a/.github/workflows/publish.yaml
+++ b/.github/workflows/publish.yaml
@@ -2,8 +2,8 @@ name: Publish to PyPI
 
 on:
   release:
-    types: [ published ]
-    branches: [ master ]
+    types: [published]
+    branches: [master]
   workflow_dispatch:
 
 jobs:
diff --git a/Makefile b/Makefile
index ba40780..b6e5d0c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,22 +1,28 @@
-.PHONY : help test install
+.PHONY : install shell format lint test test/cov
 
-format:  ## Run formatters (black, isort) with poetry
-	poetry run isort drf_simple_api_errors test_project
-	poetry run black drf_simple_api_errors test_project
+# Install dependencies with poetry
+install:
+	@poetry install --with dev -v
 
-install:  ## Install dependencies with poetry
-	poetry install --with dev -v
+# Run poetry shell
+shell:
+	@poetry shell
 
-lint:  ## Check format (black, isort) and linting (flake8)
-	poetry run isort --check drf_simple_api_errors test_project
-	poetry run black --check drf_simple_api_errors test_project --exclude migrations
-	poetry run flake8 drf_simple_api_errors test_project --max-line-length 88
+# Run formatters (black, isort) with poetry
+format:
+	@poetry run isort drf_simple_api_errors test_project
+	@poetry run black drf_simple_api_errors test_project
 
-shell:  ## Run poetry shell
-	poetry shell
+# Check format (black, isort) and linting (flake8)
+lint:
+	@poetry run isort --check drf_simple_api_errors test_project
+	@poetry run black --check drf_simple_api_errors test_project --exclude migrations
+	@poetry run flake8 drf_simple_api_errors test_project --max-line-length 88
 
-test:  ## Run unittests with poetry
-	poetry run pytest test_project
+# Run unittests with poetry
+test:
+	@poetry run pytest test_project
 
-test/cov:  ## Run code coverage tests coverage with poetry
-	poetry run pytest test_project --cov=drf_simple_api_errors --cov-report xml:coverage.xml
+# Run code coverage tests coverage with poetry
+test/cov:
+	@poetry run pytest test_project --cov=drf_simple_api_errors --cov-report xml:coverage.xml
diff --git a/drf_simple_api_errors/handlers.py b/drf_simple_api_errors/handlers.py
index 0038746..07eea7a 100644
--- a/drf_simple_api_errors/handlers.py
+++ b/drf_simple_api_errors/handlers.py
@@ -12,6 +12,12 @@
 
 
 def exc_detail_handler(data: Dict, exc_detail: Union[Dict, List]) -> Dict:
+    """
+    Handle the exception detail and set it to the `data` dictionary.
+
+    If the `exc_detail` is a dictionary, it will set to the `data` dictionary.
+    If the `exc_detail` is a list, it will be set to the `data` dictionary.
+    """
     logger.debug("`exc_detail` is instance of %s" % type(exc_detail))
 
     if isinstance(exc_detail, dict):
@@ -23,6 +29,7 @@ def exc_detail_handler(data: Dict, exc_detail: Union[Dict, List]) -> Dict:
 
 
 def __exc_detail_as_dict_handler(data: Dict, exc_detail: Dict):
+    """Handle the exception detail as a dictionary."""
     exc_detail = flatten_dict(copy.deepcopy(exc_detail))
 
     invalid_params = []
@@ -56,6 +63,7 @@ def __exc_detail_as_dict_handler(data: Dict, exc_detail: Dict):
 
 
 def __exc_detail_as_list_handler(data: Dict, exc_detail: List):
+    """Handle the exception detail as a list."""
     detail = []
     for error in exc_detail:
         detail.append(error if not isinstance(error, list) else error[0])
@@ -65,6 +73,7 @@ def __exc_detail_as_list_handler(data: Dict, exc_detail: List):
 
 
 def is_exc_detail_same_as_default_detail(exc: APIException) -> bool:
+    """Check if the exception detail is the same as the default detail."""
     return (isinstance(exc.detail, str) and exc.detail == exc.default_detail) or (
         isinstance(exc.detail, list)
         and len(exc.detail) == 1
diff --git a/pyproject.toml b/pyproject.toml
index 429675b..df76c2d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -42,11 +42,6 @@ Django = ">=2.2"
 djangorestframework = ">=3.0"
 
 
-[build-system]
-requires = ["poetry-core"]
-build-backend = "poetry.core.masonry.api"
-
-
 [tool.poetry.group.dev.dependencies]
 black = "^24.1.1"
 factory-boy = "^3.3.0"
@@ -75,3 +70,8 @@ sections = [
     "FIRSTPARTY",
     "LOCALFOLDER",
 ]
+
+
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"