Improve narrative to reflect changes in upcoming 1.3

README.txt

@@ -1,15 +1,18 @@
 BarTab -- or -- Drink now, pay later: put your tabs on your bar tab!
 ====================================================================
 
-Do you keep open tabs like libraries keep books? Do you fear browser
-restarts because it takes so long to reload all your tabs?
+So you keep open tabs like libraries keep books... Aren't you afraid
+Firefox will consume all your memory?  Don't you fear browser restarts
+because it takes so long to reload all your tabs?
 
-Well, fear no more! With BarTab you can put all those tabs on your bar
-tab and only pay for the load when you actually want to visit them.
+Well, you shouldn't! Because now you can put all the tabs you don't
+need on your bar tab, and only pay for the load when you actually want
+to visit them.
 
-BarTab intercepts when a tab is loaded in the background (e.g. after a
-browser restart) and will only load the content when the tab is
-actually visited.
+BarTab can intercept when tabs are loaded in the background or
+restored after a browser restart and will only load the content when
+the tab is actually visited.  It also allows you to free memory by
+unloading already loaded tabs, either manually or automatically.
 
 This extension is under the same license as Firefox itself, the
 Mozilla Public License Version 1.1.