Fix typo + reformat help in LockCommand

added install instruction for powershell users

Fix README(Documentation)

* fix: success message by `poetry new` now shows correct package name if it was automatically renamed

* fix: revert isort changes

* FIX: To find excluded files, no additional glob is used to build a complete list of excluded files. Instead when checking if a file is excluded, it is looked up if one of the parent folder is in the excluded list.

* making isort happy

* revert accidentally made changes to pyproject.toml/poetry.lock

* fix: change condition for breaking loop, as previous version could lead to infinite loop

* Make index urls a set to avoid exporting duplicates to requirements.txt

Fixes #1434

* Add test for deduplication of sources in exporter

* Holy test names, blackman.

* Sort indexes for consistent output with multiple extra indexes

Set mtime on setup.py/PKG-INFO when building sdist

This is probably only a typo.

`importlib-metadata` was included in the standard library, so the requirement should be `< 3.8`, not `<= 3.8`.

* CHANGE: output by `poetry version` simplified to `<project_name> <version>`

* FIX: adopt `test_version_show` to recognize new output format

Support installing and uninstalling on Fish shell

Fix "support for support" mistake at changelog

replace deprecated GPL identifiers with their new version