Initial commit

Signed-off-by: Xabier Larrakoetxea <me@slok.dev>

README.md

+# sloth
+
+[![CI](https://github.com/slok/sloth/actions/workflows/ci.yaml/badge.svg?branch=main)](https://github.com/slok/sloth/actions/workflows/ci.yaml)
+[![Go Report Card](https://goreportcard.com/badge/github.com/slok/sloth)](https://goreportcard.com/report/github.com/slok/sloth)
+[![Apache 2 licensed](https://img.shields.io/badge/license-Apache2-blue.svg)](https://raw.githubusercontent.com/slok/sloth/master/LICENSE)
+[![GitHub release (latest SemVer)](https://img.shields.io/github/v/release/slok/sloth)](https://github.com/slok/sloth/releases/latest)
+
+Easy SLO generator.