Update cheatsheets

caddy

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# caddy
+
+> An enterprise-ready open source web server with automatic HTTPS, written in Go.
+> More information: <https://caddyserver.com>.
+
+- Start Caddy in the foreground:
+
+`caddy run`
+
+- Start Caddy with the specified Caddyfile:
+
+`caddy run --config {{path/to/Caddyfile}}`
+
+- Start Caddy in the background:
+
+`caddy start`
+
+- Stop a background Caddy process:
+
+`caddy stop`
+
+- Run a simple file server on the specified port with a browsable interface:
+
+`caddy file-server --listen :{{8000}} --browse`
+
+- Run a reverse proxy server:
+
+`caddy reverse-proxy --from :{{80}} --to localhost:{{8000}}`