Run ShellCheck on a block of code.
To help you lint inline shell scripts. Can be useful when creating pipelines, packages or to lint any file containing just blocks of shell scripts. If you want to lint whole files please use the vscode ShellCheck extension.
You will need to have ShellCheck installed and in your PATH.
Add an icon
Added diagnosis code to the output with a link to the wiki.
Update .gif link in README.md. Probably don't need to bump version for this (?)
Initial release of ShellCheckSelection.