Extend readme

README.md

@@ -274,6 +274,32 @@ Settings:
 * `copy_commit_template` template for commits created during command workflow
 * `copy_init_message_template` template for init message printed at command start
 
+Template variables:
+
+* `action` - The copy algorithm consists of several intermediate actions
+(creating temporary files, merging commits, etc.)
+The `action` variable stores the header of the intermediate action.
+* `original_path` - Contains value of first argument of the command
+(path of original file that will be copied)
+* `destination_paths` - Sequence of paths to which the original file will be copied
+* `jira_task` - jira task that will be parsed from current git branch.
+If no task found in branch, then will be empty
+
+Default values for templates:
+* `copy_commit_template`:
+```python
+  "[automated-commit]: {action}\n\n"
+  "copy: {original_path}\n"
+  "to:\n* {destination_paths}\n\n"
+  "{jira_task}"
+```
+* `copy_init_message_template`:
+```python
+  "Copy {original_path} to:\n"
+  "* {destination_paths}\n\n"
+  "Count of created commits: {commits_count}"
+```
+
 ### pre-commit
 
 #### pre-commit.install