README.md: Add usage and demo sections

Bug: https://phabricator.wikimedia.org/T379709

Treat locale case insensitively (#79)

BCP 47 tags should be case insensitive.

Phabricator ticket: https://phabricator.wikimedia.org/T359822
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Co-authored-by: Kartik Mistry <kartikm@users.noreply.github.com>

Version update

Version update 2.3.0

Merge branch 'santhoshtr-htmlparse'

Version update: 2.2.0

Version update: 2.1.0

Introduce option to enable wiki links processing (#39)

* Introduce option to enable wiki links processing
  By default this option is disabled. Includes tests and documentation update.
* Version update: 2.0.0

Update version: 1.3.0

Update to version 1.1.1