Improve Usage formatting

Author: grega

hdi

@@ -1,20 +1,20 @@
 #!/usr/bin/env bash
-# hdi - "How Do I..." — Extract setup/run commands from a README.
+# hdi - "How do I..." — Extracts setup/run commands from a README.
 #
 # Usage:
-#   hdi                   Interactive command picker (default in a terminal)
-#   hdi install           Just install/setup commands
-#   hdi run               Just run/start commands
-#   hdi test              Just test commands
-#   hdi all               Show all matched sections
+#   hdi                           Interactive command picker (default in a terminal)
+#   hdi install                   Just install/setup commands
+#   hdi run                       Just run/start commands
+#   hdi test                      Just test commands
+#   hdi all                       Show all matched sections
 #   hdi [mode] --no-interactive   Print commands without the picker
-#   hdi [mode] --full     Include prose around commands
-#   hdi [mode] --raw      Plain markdown output (no colour, good for piping)
-#   hdi [mode] /path      Scan a specific directory
+#   hdi [mode] --full             Include prose around commands
+#   hdi [mode] --raw              Plain markdown output (no colour, good for piping)
+#   hdi [mode] /path              Scan a specific directory
 #   hdi [mode] /path/to/file.md   Parse a specific markdown file
 #
 # Interactive controls:
-#   ↑/↓  k/j    Navigate commands
+#   ↑/↓  k/j     Navigate commands
 #   Enter        Execute the highlighted command
 #   c            Copy highlighted command to clipboard
 #   q / Esc      Quit