Make the relative link to examples work from the refinery folder #466

Job	Run time
set-rust-versions	3s
cargo-audit	8s
Build docs	1m 28s
Cargo fmt and clippy	2m 2s
Test postgres (stable)	1m 50s
Test postgres (nightly)	2m 34s
Test mysql-async (stable)	1m 12s
Test mysql (stable)	2m 15s
Test postgres (1.75)	1m 54s
Test mysql-async (nightly)	1m 9s
test-macros-and-cli (stable, windows-latest)	4m 39s
Test mysql (nightly)	2m 10s
Test mysql-async (1.75)	1m 18s
test-macros-and-cli (stable, ubuntu-latest)	2m 0s
test-macros-and-cli (nightly, windows-latest)	4m 9s
Test Sqlite (stable)	1m 52s
test-macros-and-cli (nightly, ubuntu-latest)	2m 2s
Test Sqlite (nightly)	2m 8s
Test tiberius (stable)	1m 50s
Test mysql (1.75)	2m 27s
test-macros-and-cli (1.75, windows-latest)	3m 58s
Test tiberius (nightly)	2m 18s
Test Sqlite (1.75)	2m 9s
test-macros-and-cli (1.75, ubuntu-latest)	2m 5s
Test tiberius (1.75)	2m 11s
Test tokio-postgres (stable)	54s
Test tokio-postgres (nightly)	1m 4s
Test tokio-postgres (1.75)	57s
CI is green	1s
	54m 47s

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