Update README and enhance command documentation

Updated the installation method and added manual installation link to README.
Modified example commands in `main.go` and detailed usage in `rsync.go`
with additional use cases for better clarity.

Author: coadler

README.md

@@ -11,14 +11,16 @@ shells over a peer-to-peer wireguard connection. It's similar to
 1. Automatic peer-to-peer connections over UDP.
 1. Endless possibilities; rsync, ssh, etc.
 
-## Basic Usage
-
-Install:
+## Install
 
 ```bash
-go install github.com/coder/wush/cmd/wush@latest
+curl -fsSL https://wush.dev/install.sh | sh
 ```
 
+For a manual installation, see the [latest release](https://github.com/coder/wush/releases/latest).
+
+## Basic Usage
+
 [![asciicast](https://asciinema.org/a/ZrCNiRRkeHUi5Lj3fqC3ovLqi.svg)](https://asciinema.org/a/ZrCNiRRkeHUi5Lj3fqC3ovLqi)
 
 On the host machine:

cmd/wush/main.go

@@ -24,7 +24,7 @@ func main() {
 		Long: fmt.Sprintf(fmtLong, getBuildInfo().version) + formatExamples(
 			example{
 				Description: "Start the wush server",
-				Command:     "wush receive",
+				Command:     "wush serve",
 			},
 			example{
 				Description: "Open a shell to the wush host",
@@ -34,6 +34,10 @@ func main() {
 				Description: "Transfer files to the wush host using rsync",
 				Command:     "wush rsync local-file.txt :/path/to/remote/file",
 			},
+			example{
+				Description: "Copy a single file to the host",
+				Command:     "wush cp local-file.txt",
+			},
 		),
 		Handler: func(i *serpent.Invocation) error {
 			if showVersion {

cmd/wush/rsync.go

@@ -28,9 +28,22 @@ func rsyncCmd() *serpent.Command {
 		Use:   "rsync [flags] -- [rsync args]",
 		Short: "Transfer files over rsync.",
 		Long: "Runs rsync to transfer files to a " + cliui.Code("wush") + " peer. " +
-			"Use " + cliui.Code("wush receive") + " on the computer you would like to connect to." +
+			"Use " + cliui.Code("wush serve") + " on the computer you would like to connect to." +
 			"\n\n" +
-			"Example: " + "wush rsync -- --progress --stats -avz --human-readable /local/path :/remote/path",
+			formatExamples(
+				example{
+					Description: "Sync a local file to the remote",
+					Command:     "wush rsync /local/path :/remote/path",
+				},
+				example{
+					Description: "Download a remote file to the local computer",
+					Command:     "wush rsync :/remote/path /local/path",
+				},
+				example{
+					Description: "Add rsync flags",
+					Command:     "wush rsync /local/path :/remote/path -- --progress --stats -avz --human-readable",
+				},
+			),
 		Middleware: serpent.Chain(
 			initLogger(&verbose, ptr.To(false), logger, &logf),
 			initAuth(&overlayOpts.authKey, &overlayOpts.clientAuth),