Rename version to first_version

Author: audreyfeldroy

cookiecutter.json

@@ -6,6 +6,6 @@
   "project_slug": "{{ cookiecutter.project_name.lower().replace(' ', '_').replace('-', '_') }}",
   "project_short_description": "Python Boilerplate contains all the boilerplate you need to create a Python package.",
   "pypi_username": "{{ cookiecutter.github_username }}",
-  "version": "0.1.0",
+  "first_version": "0.1.0",
   "__gh_slug": "{{ cookiecutter.github_username }}/{{ cookiecutter.project_slug }}"
 }

{{cookiecutter.project_slug}}/HISTORY.md

@@ -1,5 +1,5 @@
 # History
 
-## {{ cookiecutter.version }} ({% now 'local' %})
+## {{ cookiecutter.first_version }} ({% now 'local' %})
 
 * First release on PyPI.

{{cookiecutter.project_slug}}/pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "{{cookiecutter.project_name.lower().replace(' ', '-')}}"
-version = "{{ cookiecutter.version }}"
+version = "{{ cookiecutter.first_version }}"
 description = "{{cookiecutter.project_short_description}}"
 readme = "README.md"
 authors = [