examples improvement - certbot cloudflare and wildcard, clamav, crowdsec, ghost and gogs

examples/gogs/README.md

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+# Gogs
+
+Gogs is an easy to install, cross-platform and lightweight self-hosted Git service. More info on the [website](https://gogs.io/).
+
+## Architecture
+
+<img src="https://github.com/bunkerity/bunkerized-nginx/blob/dev/examples/gogs/architecture.png?raw=true" />
+
+## Docker
+
+See [docker-compose.yml](https://github.com/bunkerity/bunkerized-nginx/blob/master/examples/gogs/docker-compose.yml).