[FLORA-434] Show 3 numbers in version if using 0x versioning scheme.

[a-02]

Proposed changes

It's not gonna do just 0.x anymore. Trust me on this one.

Contributor checklist

• My PR is related to Installation section gives misadvice about version (at least for 0.x.y.z) #434.
• I have read and understood the CONTRIBUTING guide
• I have inserted my change and a link to this PR in the CHANGELOG

[tchoutri]

@a-02 It's looking good! Just run the make style Makefile rule and this should be the last thing missing!

[tchoutri]

Perfect

[tchoutri]

@Mergifyio rebase

[mergify]

rebase

❌ Base branch update has failed

Git reported the following error:

Rebasing (1/3)
Rebasing (2/3)
Rebasing (3/3)
Auto-merging CHANGELOG.md
CONFLICT (content): Merge conflict in CHANGELOG.md
error: could not apply c1ada54... Update changelog.
hint: Resolve all conflicts manually, mark them as resolved with
hint: "git add/rm <conflicted_files>", then run "git rebase --continue".
hint: You can instead skip this commit: run "git rebase --skip".
hint: To abort and get back to the state before "git rebase", run "git rebase --abort".
Could not apply c1ada54... Update changelog.