Update README.md

Fixed a typo
Update README.md

Added info about MuleStudio tutorials
Added basic auth to PR service, added functional test to ensure the PR
communication works.
Merge branch 'develop' of https://github.com/jembi/openhim into develop
Turned off log4j properties in lib as it was interfering with the Mule
Application's logging.
Remove error producing schema...
Merge remote-tracking branch 'origin/develop' into ihe-pix-xds-profile

Conflicts:
	src/main/resources/HIM-core.properties