Update runtime files

runtime/doc/terminal.txt

@@ -1415,7 +1415,7 @@ the "disasm_window_height" entry can be used to set the window height: >
 	let g:termdebug_config['disasm_window_height'] = 15
 or, if there is no g:termdebug_config: >
 	let g:termdebug_disasm_window = 15
-Any value greater than 1 will set the Asm window height to that value: >
+Any value greater than 1 will set the Asm window height to that value.
 
 Communication ~
 						*termdebug-communication*
@@ -1469,7 +1469,7 @@ get this error:
 Then your gdb is too old.
 
 
-Colors~
+Colors ~
 						*hl-debugPC* *hl-debugBreakpoint*
 The color of the signs can be adjusted with these highlight groups:
 - debugPC		the current position
@@ -1484,7 +1484,8 @@ When 'background' is "dark":
   hi debugBreakpoint term=reverse ctermbg=red guibg=red
 
 
-Shortcuts						*termdebug_shortcuts*
+Shortcuts ~
+							*termdebug_shortcuts*
 
 You can define your own shortcuts (mappings) to control gdb, that can work in
 any window, using the TermDebugSendCommand() function.  Example: >
@@ -1492,7 +1493,8 @@ any window, using the TermDebugSendCommand() function.  Example: >
 The argument is the gdb command.
 
 
-Popup menu						*termdebug_popup*
+Popup menu ~
+							*termdebug_popup*
 
 By default the Termdebug plugin sets 'mousemodel' to "popup_setpos" and adds
 these entries to the popup menu:
@@ -1505,7 +1507,8 @@ or if there is no g:termdebug_config: >
 	let g:termdebug_popup = 0
 
 
-Vim window width						*termdebug_wide*
+Vim window width ~
+							*termdebug_wide*
 
 To change the width of the Vim window when debugging starts and use a vertical
 split: >