Add change log for 5.18.0

[knabar]

Added #433, #435, #441 to changelog.

Also added upgrade notes to UPGRADING.md (formerly MIGRATION_TO_DJANGO_32_GUIDE.md)

[sbesson]

What is the current plan for the developer documentation of the dependency upgrade? https://github.com/ome/omero-web/pull/433#issuecomment-1386858733 suggested a few options including using the changelog, adding a migration guide similar to https://github.com/ome/omero-web/blob/master/MIGRATION_TO_DJANGO_32_GUIDE.md

[jburel]

Thanks @sbesson for the reminder. A migration doc might be easier to find and reference @knabar what do you think?

[knabar]

@jburel @sbesson I renamed the existing MIGRATION_TO_DJANGO_32_GUIDE.md to UPGRADING.md and expanded it with notes about this release.

[jburel]

The renaming of the file might break some links. I will double-check

[knabar]

The renaming of the file might break some links. I will double-check

Thank you, I did not think of that. Hopefully, if there are links, they are to a specific tag/commit and not to HEAD.

[jburel]

See https://github.com/knabar/omero-web/pull/1

[jburel]

• Link in https://raw.githubusercontent.com/ome/www.openmicroscopy.org/master/_posts/2022-03-21-omero-web-5.14.0.md points to the tag so we have fine on that front
• https://github.com/ome/omero-documentation/pull/2294 for doc

[jburel]

@knabar I forgot to mention in ther release doc that for "key" release like this one we will need to add a post to the website i will update the documentation

[jburel]

@knabar I fixed the link in the README in https://github.com/knabar/omero-web/pull/1

[knabar]

Added #436 to changelog