Document speech recording function in README

README.md

@@ -5,4 +5,8 @@ The original version of the add-on offered two keystrokes:
 * F12: Copy the most recent spoken text to the clipboard
 * Shift+F12: Toggle an optional beep on new text
 
-This version adds the ability to review the 500 most recent items spoken by NVDA, by default using the hotkeys Shift+F11 and Shift+F12.  Pressing F12 will copy the currently selected item from the history, which is updated to be the most recent each time NVDA speaks.  In other words, F12 still behaves as it did in the older add-on, unless you've specifically selected an older spoken item to copy.  The beep on new text function has been removed.
+In this version:
+* You can review the 500 most recent items spoken by NVDA, by default using the hotkeys Shift+F11 and Shift+F12.
+* Pressing F12 will copy the currently selected item from the history, which is updated to be the most recent each time NVDA speaks.  In other words, F12 still behaves as it did in the older add-on, unless you've specifically selected an older spoken item to copy.
+* You can capture multiple speech history items in realtime, which is useful for e.g. bug reports without copying from the Speech Viewer.  Press NVDA+Shift+F11 to start recording, use NVDA as normal, and then press NVDA+Shift+F12 to stop recording.  All recorded speech will be copied to the clipboard, with items separated by a line break (`\n`).
+* The beep on new text function has been removed.