FluxCD Website docs about Flagger are obsolete

[mveroone]

Hi.

We were comparing the documentaiton between 2 URLs and they seem contradictory :

• https://fluxcd.io/flagger/usage/deployment-strategies/
• https://docs.flagger.app/main/usage/deployment-strategies

The first one hasn't been edited for 3 years and contains things that don't seem to exist anymore like spec.analysis.promotion.stepWeight since replaced with spec.analysis.promotionStepWeight

Shall we replace the whole seciton by a link to Flagger's official docs that are more up to date ?