Fixes

• nvm_strip_path: Preserve leading/trailing colons (#3145)
• allow checksums to pass with a leading backslash
• nvm install-latest-npm: ensure npm 10 does not install on unsupported nodes

Docs

• [readme] add examples of setting specific versions as default (#3151)

Tests

• add some nvm_do_install tests
• a cleaner name for the windows tests