More NEWS tagging

etc/NEWS

@@ -584,6 +584,7 @@ commands and is globally bound to 'C-h x'.
 +++
 *** New command 'describe-keymap' describes keybindings in a keymap.
 
+---
 *** New command 'apropos-function'.
 This works like 'C-u M-x apropos-command' but is more discoverable.
 
@@ -627,6 +628,7 @@ can provide a better overview in a long list of available bindings.
 It allows users to change the maximum number of keystrokes and
 commands recorded for the purpose of 'view-lossage'.
 
++++
 *** New commands to describe buttons and widgets.
 'widget-describe' (on a widget) will pop up a help buffer and give a
 description of the properties.  Likewise 'button-describe' does the
@@ -638,6 +640,7 @@ Now clicking on the link to find the definition of functions generated
 by 'cl-defstruct', or variables generated by 'define-derived-mode',
 for example, will go to the exact place where they are defined.
 
+---
 *** New commands 'apropos-next-symbol' and 'apropos-previous-symbol'.
 These new navigation commands are bound to 'n' and 'p' in
 'apropos-mode'.
@@ -711,6 +714,7 @@ summary of where Emacs is using memory currently.
 This works like 'report-emacs-bug', but is more geared towards sending
 patches to the Emacs issue tracker.
 
+---
 *** New face 'apropos-button'.
 Applies to buttons that indicate a face.