Added checkbox & functionality to support further analysis via https:…

…//staticcheck.io (this is provided through `gopls`)

Updated changelog and readme to reflect the changes made so far.

For v0.3.3

- Bumping the version because something went wrong with the upload

Updates for 0.3.0

Explained why `gopls` cannot be bundled any more.

Bumping to 0.1.0, by removing all the images under Images/, which I n…

…ow know that will be rejected when uploading to the Extension Library.

Hrmpf. Forgot to save it.