Welcome... Big thumbs up on just cleaning it up and keep an eye on it, change it every oil change or every other, lube the spline when you change that tire!
Here is a helpful thread i had issues as well!
Its probably leaking from the bolt, Take out the bolt, change the oil, NEW BOLT... upgrade it, DO NOT use the OEM trash bolt and use a new crush washer or anneal the old one.
Ever wish you stripped out your threads? Diff drain bolt POS