diff --git a/.markdownlint.yaml b/.markdownlint.yaml
new file mode 100644
index 0000000..58b704a
--- /dev/null
+++ b/.markdownlint.yaml
@@ -0,0 +1,144 @@
+# markdownlint YAML configuration
+# https://github.com/DavidAnson/markdownlint/blob/main/schema/.markdownlint.yaml
+
+# Default state for all rules
+default: true
+
+# Path to configuration file to extend
+extends: null
+
+# MD003/heading-style/header-style - Heading style
+MD003:
+  # Heading style
+  style: "atx"
+
+# MD004/ul-style - Unordered list style
+MD004:
+  style: "dash"
+
+# MD007/ul-indent - Unordered list indentation
+MD007:
+  # Spaces for indent
+  indent: 2
+  # Whether to indent the first level of the list
+  start_indented: false
+
+# MD009/no-trailing-spaces - Trailing spaces
+MD009:
+  # Spaces for line break
+  br_spaces: 2
+  # Allow spaces for empty lines in list items
+  list_item_empty_lines: false
+  # Include unnecessary breaks
+  strict: false
+
+# MD010/no-hard-tabs - Hard tabs
+MD010:
+  # Include code blocks
+  code_blocks: true
+
+# MD012/no-multiple-blanks - Multiple consecutive blank lines
+MD012:
+  # Consecutive blank lines
+  maximum: 1
+
+# MD013/line-length - Line length
+MD013:
+  # Number of characters
+  line_length: 80
+  # Number of characters for headings
+  heading_line_length: 80
+  # Number of characters for code blocks
+  code_block_line_length: 80
+  # Include code blocks
+  code_blocks: false
+  # Include tables
+  tables: false
+  # Include headings
+  headings: true
+  # Include headings
+  headers: true
+  # Strict length checking
+  strict: false
+  # Stern length checking
+  stern: false
+
+# MD022/blanks-around-headings/blanks-around-headers - Headings should be surrounded by blank lines
+MD022:
+  # Blank lines above heading
+  lines_above: 1
+  # Blank lines below heading
+  lines_below: 1
+
+# MD024/no-duplicate-heading/no-duplicate-header - Multiple headings with the same content
+MD024:
+  # Only check sibling headings
+  allow_different_nesting: true
+
+# MD025/single-title/single-h1 - Multiple top-level headings in the same document
+MD025:
+  # Heading level
+  level: 1
+  # RegExp for matching title in front matter
+  front_matter_title: "^\\s*title\\s*[:=]"
+
+# MD026/no-trailing-punctuation - Trailing punctuation in heading
+MD026:
+  # Punctuation characters
+  punctuation: ".,;:!。，；：！"
+
+# MD029/ol-prefix - Ordered list item prefix
+MD029:
+  # List style
+  style: "one_or_ordered"
+
+# MD030/list-marker-space - Spaces after list markers
+MD030:
+  # Spaces for single-line unordered list items
+  ul_single: 1
+  # Spaces for single-line ordered list items
+  ol_single: 1
+  # Spaces for multi-line unordered list items
+  ul_multi: 1
+  # Spaces for multi-line ordered list items
+  ol_multi: 1
+
+# MD033/no-inline-html - Inline HTML
+MD033:
+  # Allowed elements
+  allowed_elements: []
+
+# MD035/hr-style - Horizontal rule style
+MD035:
+  # Horizontal rule style
+  style: "---"
+
+# MD036/no-emphasis-as-heading/no-emphasis-as-header - Emphasis used instead of a heading
+MD036:
+  # Punctuation characters
+  punctuation: ".,;:!?。，；：！？"
+
+# MD041/first-line-heading/first-line-h1 - First line in a file should be a top-level heading
+MD041:
+  # Heading level
+  level: 1
+  # RegExp for matching title in front matter
+  front_matter_title: "^\\s*title\\s*[:=]"
+
+# MD044/proper-names - Proper names should have the correct capitalization
+MD044:
+  # List of proper names
+  names:
+  - helm
+  # Include code blocks
+  code_blocks: false
+
+# MD046/code-block-style - Code block style
+MD046:
+  # Block style
+  style: "fenced"
+
+# MD048/code-fence-style - Code fence style
+MD048:
+  # Code fence syle
+  style: "backtick"
\ No newline at end of file
diff --git a/README.md b/README.md
index 435e626..bc874c0 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ Clone a commit:
 podman run \
   --rm \
   --env DRONE_BUILD_EVENT=push \
-  --env DRONE_COMMIT_SHA=39d233b3d9eccc68e66508a06a725a2567f33143 \
+  --env DRONE_COMMIT_BRANCH=master \
   --env DRONE_REMOTE_URL=https://git.cryptic.systems/volker.raschek/git-docker.git \
   --env DRONE_WORKSPACE=/workspace \
   --volume /tmp/workspace:/workspace \
diff --git a/rootfs/usr/local/bin/clone-commit b/rootfs/usr/local/bin/clone-commit
index 7a0f924..4639d76 100755
--- a/rootfs/usr/local/bin/clone-commit
+++ b/rootfs/usr/local/bin/clone-commit
@@ -37,9 +37,11 @@ fi
 # fast-forward is not possible. Checkout the specified commit sha which must be
 # part of the branch.
 if [[ -n "${DRONE_COMMIT_BRANCH}" ]] && [[ -n "${DRONE_COMMIT_SHA}" ]]; then
-  GIT_CHECKOUT_ARGS="${GIT_CHECKOUT_ARGS} -b ${DRONE_COMMIT_SHA} -b refs/remotes/origin/${DRONE_COMMIT_BRANCH}"
+  GIT_CHECKOUT_ARGS="${GIT_CHECKOUT_ARGS} ${DRONE_COMMIT_SHA} -b refs/remotes/origin/${DRONE_COMMIT_BRANCH}"
   GIT_FETCH_ARGS="${GIT_FETCH_ARGS} origin +refs/heads/${DRONE_COMMIT_BRANCH}:refs/remotes/origin/${DRONE_COMMIT_BRANCH}"
 fi
 
 git fetch ${GIT_FETCH_ARGS}
 git checkout ${GIT_CHECKOUT_ARGS}
+
+ls -la