added second repo in current repo as folder

 Agar tum us repo ko bas ek normal folder ki tarah rakhna chahte ho aur uske saare files parent repo ke saath GitHub par push karna chahte ho, toh Option 2 sahi hai.

Steps

1. Inner repository ki .git directory hatao:

rm -rf lecture_16_langsmith/langsmith-masterclass/.git -> ye uss repo ka name leture_!6_langsmith wale folder mein that angsmithmaster class wali repo

2. Agar pehle se add ho chuka hai toh cache saaf karo:

git rm --cached -r lecture_16_langsmith/langsmith-masterclass