Update doc file names and title levels #2172

Job	Run time
Build aarch64-apple-darwin	12m 45s
Build and test docker images	5m 42s
Build debian-x86_64	8m 31s
Lint and Unit test	4m 13s
Build x86_64-apple-darwin	3m 26s
Build x86_64-pc-windows-msvc	4m 14s
Build x86_64-unknown-linux-gnu	1m 58s
Test on macOS-latest	5m 46s
Test postgis:11-3.0-alpine sslmode=disable	5m 9s
Test on windows-latest	3m 27s
Test postgis:14-3.3-alpine sslmode=disable	6m 41s
Test on ubuntu-latest	45s
Test postgis:15-3.3 sslmode=require	7m 1s
Package	1m 1s
CI Finished	3s
	1h 10m 42s

Provide feedback