Adds sqlh to examples (#712)

Author: RevanProdigalKnight

docs/examples.md

@@ -46,3 +46,7 @@ It is a Docker (containers) based development environment for PHP.
 ### [SherpaCLI/sherpa](https://sherpa-cli.netlify.app/tools/unit-tests)
 
 Sh:erpa is a tool for simplifying script creation. It integrates **bashunit** to ensure reliable, tested Bash scripts for its users.
+
+### [sqlh](https://gitlab.com/prodigal.knight/sqlite-history.sh)
+
+sqlh is a SQLite-backed shell history alternative with shared history features which works across multiple shells.