Added help text for the pause command

cmd/mop.go

@@ -16,10 +16,12 @@ NO WARRANTIES OF ANY KIND WHATSOEVER. SEE THE LICENSE FILE FOR DETAILS.
 <u>Command</u>    <u>Description                                </u>
    +       Add stocks to the list.
    -       Remove stocks from the list.
-   o       Change column sort order.
-   g       Group stocks by advancing/declining issues.
    ?       Display this help screen.
-  esc      Quit mop.
+   g       Group stocks by advancing/declining issues.
+   o       Change column sort order.
+   p       Pause market data and stock updates.
+   q       Quit mop.
+  esc      Ditto.
 
 Enter comma-delimited list of stock tickers when prompted.
 

screen.go

@@ -50,6 +50,8 @@ func (screen *Screen) Resize() *Screen {
 	return screen
 }
 
+// Pause is a toggle function that either creates a timestamp of the pause
+// request or resets it to nil.
 func (screen *Screen) Pause(pause bool) *Screen {
         if pause {
                 screen.pausedAt = new(time.Time)