Updated README.md files to represent current code / use Markdown format

Previously, all of the README files have been renamed to README.md
and now, the contents of these files were changed to use Markdown
format. Other than format inconsistency, some README.md files lacked
information about modules, or were out of date. By using LibreOffice
/ OpenOffice wiki and other documentation websites, these files were
updated. Now every README.md file has a title, and some description.
The top-level README.md file is changed to add links to the modules.
The result of processing the Markdown format README.md files can be
seen at: https://docs.libreoffice.org/

Change-Id: Ic3b0c3c064a2498d6a435253b041df010cd7797a
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/113424
Tested-by: Jenkins
Reviewed-by: Michael Stahl <michael.stahl@allotropia.de>
Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>

0 files changed, 0 insertions, 0 deletions