cli: Instruct in --help how to run to see all logs (#24112)

Release Notes:

- N/A

crates/cli/src/main.rs

@@ -33,7 +33,19 @@ trait InstalledApp {
 #[command(
     name = "zed",
     disable_version_flag = true,
-    after_help = "To read from stdin, append '-' (e.g. 'ps axf | zed -')"
+    before_help = "The Zed CLI binary.
+This CLI is a separate binary that invokes Zed.
+
+Examples:
+    `zed`
+          Simply opens Zed
+    `zed --foreground`
+          Runs in foreground (shows all logs)
+    `zed path-to-your-project`
+          Open your project in Zed
+    `zed -n path-to-file `
+          Open file/folder in a new window",
+    after_help = "To read from stdin, append '-', e.g. 'ps axf | zed -'"
 )]
 struct Args {
     /// Wait for all of the given paths to be opened/closed before exiting.
@@ -45,10 +57,9 @@ struct Args {
     /// Create a new workspace
     #[arg(short, long, overrides_with = "add")]
     new: bool,
-    /// A sequence of space-separated paths that you want to open.
+    /// The paths to open in Zed (space-separated).
     ///
-    /// Use `path:line:row` syntax to open a file at a specific location.
+    /// Use `path:line:column` syntax to open a file at the given line and column.
-    /// Non-existing paths and directories will ignore `:line:row` suffix.
     paths_with_position: Vec<String>,
     /// Print Zed's version and the app path.
     #[arg(short, long)]