I know that the application form doesn't have as many documents written on it, but it's basically the same visa as the fiance/spousal visa, and has the same requirements, especially financial requirements. Therefore, it makes sense to send the same evidence that you send for your fiance visa.
Your document lists looks pretty good though.
You will need to show that you still meet the £18,600 financial requirement, which has strict document requirements, so I would send all the same documents again:
- 6 months payslips.
- 6 months bank statements
- Letter from employer
- Optional but recommended: Job contract and P60
For the accommodation, it's similar again:
- tenancy agreement with both your names on
- if it doesn't have both names on yet, then a letter from the landlord giving you permission to live there.
Relationship evidence - as you are now married and proved your relationship for the fiance visa, you don't have to be as thorough:
- marriage certificate
- one or two photos together
- divorce decrees
You don't really need to include evidence of regular correspondence now, as you live together in the UK and see each other every day.
For the basic documents (passports etc.), for FLR(M) you are now allowed to send just a regular photocopy of your sponsor's passport BUT you must provide a copy of every single page of the passport.