update docs on cmake.mingwSearchDirs

[elahehrashedi]

bugfix: #2996

[bobbrow]

I think it's better to just not add 'bin' to the path. Fix it here:

vscode-cmake-tools/src/kit.ts

Line 1212 in f666577

return mingwDirs.map(mingwDir => path.join(mingwDir, 'bin'));

Otherwise we also have to explain it in package.nls.json. It's easier to just not append 'bin'.

[bobbrow]

Let's fix it to work instead of updating the description.

[elahehrashedi]

Let's fix it to work instead of updating the description.

The description needed to be updated to show that we removed the default value #2942