remove Caddy, add documentation

README.md

@@ -1,5 +1,31 @@
 # matrix-synapse-quadlets
 
-add 'net.ipv4.ip_unprivileged_port_start=80' to /etc/sysctl.conf
+## How to install (from [podman documentation](https://docs.podman.io/en/latest/markdown/podman-systemd.unit.5.html))
 
-sysctl net.ipv4.ip_unprivileged_port_start=80
+Podman rootful unit search path
+
+Quadlet files for the root user can be placed in the following directories ordered in precedence. Meaning duplicate named quadlets found under /run take precedence over ones in /etc, as well as those in /usr:
+
+Temporary quadlets, usually used for testing:
+
+- /run/containers/systemd/
+
+System administrator’s defined quadlets:
+
+- /etc/containers/systemd/
+
+Distribution defined quadlets:
+
+- /usr/share/containers/systemd/
+
+Podman rootless unit search path
+
+Quadlet files for non-root users can be placed in the following directories:
+
+- $XDG_RUNTIME_DIR/containers/systemd/
+
+- $XDG_CONFIG_HOME/containers/systemd/ or ~/.config/containers/systemd/
+
+- /etc/containers/systemd/users/$(UID)
+
+- /etc/containers/systemd/users/