Make the relative link to examples work from the refinery folder (#318) #467

Job	Run time
cargo-audit	16s
set-rust-versions	3s
Build docs	1m 20s
Cargo fmt and clippy	1m 58s
Test mysql (stable)	2m 9s
Test mysql-async (stable)	1m 7s
Test mysql (nightly)	2m 15s
test-macros-and-cli (stable, windows-latest)	4m 31s
Test postgres (stable)	1m 59s
Test mysql-async (nightly)	1m 13s
Test mysql (1.75)	2m 13s
test-macros-and-cli (stable, ubuntu-latest)	2m 7s
Test postgres (nightly)	2m 6s
test-macros-and-cli (nightly, windows-latest)	4m 30s
Test postgres (1.75)	1m 57s
Test mysql-async (1.75)	1m 55s
test-macros-and-cli (nightly, ubuntu-latest)	2m 53s
Test Sqlite (stable)	1m 40s
test-macros-and-cli (1.75, windows-latest)	4m 30s
Test Sqlite (nightly)	2m 25s
test-macros-and-cli (1.75, ubuntu-latest)	2m 13s
Test tiberius (stable)	1m 47s
Test Sqlite (1.75)	1m 59s
Test tokio-postgres (stable)	55s
Test tiberius (nightly)	2m 4s
Test tokio-postgres (nightly)	1m 7s
Test tiberius (1.75)	2m 14s
Test tokio-postgres (1.75)	57s
CI is green	2s
	56m 25s

Provide feedback