Improve text generator for english emails

- Fix typo in logs
- Add .gitignore to exclude from versioning generated files
- Add english template for newcomers on GitHub

Signed-off-by: Pierre-Yves Lapersonne <pierreyves.lapersonne@orange.com>

Author: pylapp

CHANGELOG.md

@@ -25,6 +25,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- English template for email text generation about GitHub newcomers
 - Bug and feature request templates, and other files for the hygiene of the project
 
 ### Changed