Template consistency pass

[Hawk Ticehurst (hawkticehurst)]

Resolves #359

Includes the following changes:

• Fix capitalization in the root package.json description
• Remove extra empty line from gitattributes files
• Update all gitignore, gitattribute, and vscodeignore that are not dotfiles to be dotfiles
• Change all instances of CMD to Cmd
• Change all instances of 'VSCode' to 'VS Code'
• Update template README files to be more consistent with each other in terms of formatting and content
• Fix various typos, formatting, and grammar issues in vsc-extension-quickstart files

[Hawk Ticehurst (hawkticehurst)]

cc David Dossett (@daviddossett) / @misolori / Martin Aeschlimann (@aeschli)

[Hawk Ticehurst (hawkticehurst)]

Looks like CI testing failed because gitattribute (no dotfile) is part of the test suite (so I'm happy to revert my changes on that).

But I suppose it's a good time to double-check why only some of gitignore, gitattribute, and vscodeignore files are dotfiles and others are not?

[Martin Aeschlimann (aeschli)]

Update all gitignore, gitattribute, and vscodeignore that are not dotfiles to be dotfiles

That also requires updating the generator scripts. Note: the user never saw the dotless files.

[Hawk Ticehurst (hawkticehurst)]

That also requires updating the generator scripts. Note: the user never saw the dotless files.

Ahh, thanks for clarifying and for contributing a change to address this!