Export Azure DevOps TFVC repo to Github

Step 1:

Azure TFVC Repo -> Azure Git Repo 

https://docs.microsoft.com/en-us/azure/devops/learn/git/migrate-from-tfvc-to-git

Step 2:

Azure Git Repo -> GitHub

1. Enable alternate authentication credentials and specify user name and password
2. Go to a repository of your project (Code=>Files), click Clone to get the HTTPS URL.
3. Go to Github=>Import repository
4. Type repository URL (step 2)
5. Type alternate authentication credentials (step 1) when it asks for credential

https://developercommunity.visualstudio.com/content/problem/449985/export-devops-repos-to-github.html