consider re-naming the project from "Taskwarrior-installation" to "tw-install"

and then consider changing the main executable name from "main.sh" to "tw-install.sh", so that users will be able to invoke it with specificity.

Start by inspecting the repository entry points and the currently named main.sh executable. Trace references to the project name and executable name across the repository before deciding whether both should be changed to tw-install and tw-install.sh. Done means the naming is consistent wherever users invoke or identify the installer.

Written by the indexing model from the issue text.