Adam Johnson c740a994fa [3.0.x] Improved docs on migration reversibility.
- Clarify reversibility for RunSQL and RunPython operations.
- Add example for migrate with irreversible migration.

Co-authored-by: Carlton Gibson <carlton.gibson@noumenal.es>
Backport of b15b3706fec8ef59577ac47118ee0c62132a03a6 from master
2020-03-25 14:39:17 +01:00
..
2017-05-24 09:13:26 -04:00

The documentation in this tree is in plain text files and can be viewed using
any text file viewer.

It uses ReST (reStructuredText) [1], and the Sphinx documentation system [2].
This allows it to be built into other forms for easier viewing and browsing.

To create an HTML version of the docs:

* Install Sphinx (using ``python -m pip install Sphinx`` or some other method).

* In this docs/ directory, type ``make html`` (or ``make.bat html`` on
  Windows) at a shell prompt.

The documentation in _build/html/index.html can then be viewed in a web browser.

[1] http://docutils.sourceforge.net/rst.html
[2] https://www.sphinx-doc.org/