I have 2 servers,
The first one contains 2 websites (located in 2 separate directories):

1. <https://example.com/site1>
2. <https://example.com/site2>

The second server contains 1 website in root folder (React website).
Can you please help me to set up nginx on first server to make it point to the second server when user access to <https://example.com>.