[Integrated] RFR: 238: Add link to upstream repository to generated webrevs

[Erik Helin]

Changeset: db6fbee3
Author:    Erik Helin <ehelin at openjdk.org>
Date:      2020-01-22 17:03:34 +0000
URL:       https://git.openjdk.java.net/skara/commit/db6fbee3

238: Add link to upstream repository to generated webrevs

Reviewed-by: rwestberg

! bots/mlbridge/src/main/java/org/openjdk/skara/bots/mlbridge/WebrevStorage.java