Bambianoz

I dont want to upload it for bonafide of my current marriage ,but only for evidence that my previous marriage was not entered only for immigration purposes , i have to provide clear evidence that my previous marriage was also real and not entered only for immigration benefits as I got my green card through previous marriage, thats why wanted to upload child birth certificate born from my first wife

I am filing an i-130 online for my spouse can someone please tell me that in what section can I upload my divorce certificate as I was previously married , i-130 has specific sections like proof of us citizenship and proof of marriage section for evidence so I am confused in what section do i need to upload my divorce certificate P.S I am a LPR and I came here based on previous marriage with a US Citizen but my marriage was real and I had children from previous marriage which shows it was legitimate so I also want to know in what section I can upload the birth certificate of my child from previous marriage to show that marriage was real