Formatted the git subtree commands for clarity
Formatted the git subtree commands for clarity

Added codeblocks around the git subtree add/pull commands so they don't run into each other on a single line.
Makes it easier to read.
openregister/openregister-java,openregister/openregister-java,openregister/openregister-java,openregister/openregister-java,openregister/openregister-java