add entry for omero-web release

[jburel]

Add entry for release instructions of OMERO.web

[sbesson]

The page makes sense to me and is consistent with the release process page introduced for OMERO.server.

A few thoughts which should not hold the merging of this PR

• the Docker section could likely include a paragraph as in the OMERO.server page indicating which repository should be tagged (I assume there is no version to maintain for this image)
• is there any form of documentation update for an OMERO.web release?
• the format of the announcement post lacks consistency with the one in OMERO.server
• as more release process pages are migrated to the contributing documentations and entries are added to the left hand panel, we will reach the point where organising these pages with nested layout might increase the readability

[jburel]

I follow the format used by @knabar i.e. usage of dots.
We can modify that so all the announcements follow the same pattern

[jburel]

The page makes sense to me and is consistent with the release process page introduced for OMERO.server.

A few thoughts which should not hold the merging of this PR

• the Docker section could likely include a paragraph as in the OMERO.server page indicating which repository should be tagged (I assume there is no version to maintain for this image)

I have added a link to the repo, no version to update. This might change if ome/omero-web-docker#78 is merged

• is there any form of documentation update for an OMERO.web release?

Not really

• the format of the announcement post lacks consistency with the one in OMERO.server

Comment above

• as more release process pages are migrated to the contributing documentations and entries are added to the left hand panel, we will reach the point where organising these pages with nested layout might increase the readability

I will look into that in a follow-up PR