(Duplicate) Review and clean up the Shards API Documentation

[ChelseaChX]

• [ ] Review all the API documentation
• [ ] Note down any empty fields/segments
• [ ] Rework any segment that is unclear
• [ ] Fix grammatical and spelling errors

[ChelseaChX]

Hey team! Please add your planning poker estimate with Zenhub @ChelseaChX @Kryptos-FR