fix: typo in arg name for terraform-docs (antonbabenko#283)

Author: mj3c

README.md

@@ -329,7 +329,7 @@ Unlike most other hooks, this hook triggers once if there are any changed files
  - id: terraform_docs
  args:
  - --hook-config=--path-to-file=README.md # Valid UNIX path. I.e. ../TFDOC.md or docs/README.md etc.
- - --hook-config=--add-to-exiting-file=true  # Boolean. true or false
+ - --hook-config=--add-to-existing-file=true # Boolean. true or false
  - --hook-config=--create-file-if-not-exist=true # Boolean. true or false
  ```
 

terraform_docs.sh

@@ -119,7 +119,7 @@ terraform_docs() {
  # Get hook settings
  #
  local text_file="README.md"
- local add_to_exiting=false
+ local add_to_existing=false
  local create_if_not_exist=false
 
  configs=($hook_config)
@@ -132,8 +132,8 @@ terraform_docs() {
  --path-to-file)
  text_file=$value
  ;;
- --add-to-exiting-file)
- add_to_exiting=$value
+ --add-to-existing-file)
+ add_to_existing=$value
  ;;
  --create-file-if-not-exist)
  create_if_not_exist=$value
@@ -171,10 +171,10 @@ terraform_docs() {
  [[ ! -f "$text_file" ]] && popd > /dev/null && continue
 
  #
- # If `--add-to-exiting-file=true` set, check is in file exist "hook markers",
+ # If `--add-to-existing-file=true` set, check is in file exist "hook markers",
  # and if not - append "hook markers" to the end of file.
  #
- if $add_to_exiting; then
+ if $add_to_existing; then
  HAVE_MARKER=$(grep -o '<!-- BEGINNING OF PRE-COMMIT-TERRAFORM DOCS HOOK -->' "$text_file" || exit 0)
 
  if [ ! "$HAVE_MARKER" ]; then