Update install instructions and mark 0.1.1 release

[leouieda]

Was missing instructions for conda and pip. Mark a new bug fix release to update the latest documentation pages only.

Reminders

• [ ] Run make format and make check to make sure the code follows the style guide.
• [ ] Add tests for new features or tests that would have caught the bug that you're fixing.
• [ ] Add new public functions/methods/classes to doc/api/index.rst.
• [ ] Write detailed docstrings for all functions/methods.
• [ ] If adding new functionality, add an example to the docstring, gallery, and/or tutorials.

[codecov[bot]]

Codecov Report

Merging #24 into master will not change coverage. The diff coverage is n/a.

@@          Coverage Diff          @@
##           master    #24   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           3      3           
  Lines         102    102           
  Branches        1      1           
=====================================
  Hits          102    102

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