Version 1.0.0

### Changed

- API changes:
  - `header` attribute renamed to `preamble` to avoid confusion.
- improved version header parsing to be more robust and handle multi-word version names.
- improved version number incrementing in `release`.
  - can now handle other text surrounding a pep440-compliant version number, which will not be modified
  - can now handle pre-releases correctly. The version to increment is the most recent version in the log with a valid pep440 version number in it. 
  - Release increment and prerelease increments can be mixed, allowing e.g: `yaclog release -mr` to create a release candidate with in incremented minor version number.
- `release` base version is now an argument instead of an option, for consistency with other commands.

### Removed

- `entry` with multiple `-b` options no longer add sub bullet points, instead adding each bullet as its own line.

### Added

- Terminal output has color to distinguish version names/headers, sections, and git information.
- Extra newlines are added between versions to improve readability of the raw markdown file.

docs/index.md

@@ -1,4 +1,8 @@
-# Yaclog: Yet Another Command Line Changelog Tool
+# Yaclog: Yet Another Commandline Changelog Tool
+
+[![Documentation Status](https://readthedocs.org/projects/yaclog/badge/?version=latest)](https://yaclog.readthedocs.io/en/latest/?badge=latest)
+[![Build Status](https://github.com/drewcassidy/yaclog/actions/workflows/python-publish.yml/badge.svg)](https://github.com/drewcassidy/yaclog/actions/workflows/python-publish.yml)
+[![PyPI version](https://badge.fury.io/py/yaclog.svg)](https://badge.fury.io/py/yaclog)
 
 Yaclog is a python library and command line tool to make it easier to keep track of changes to your projects.
 It includes commands for appending new changes to a markdown changelog file, as well as releasing new versions