Docs: fix *more* typos!

README.md

@@ -16,7 +16,7 @@ Why, oh why, didn't phpBB save your data?
 
 Well, there is the 'Draft' facility, but that doesn't work as well as it should. Unless you have an extension for that, by default, forum users have to _manually_ press <kbd>Save Draft</kbd> — and it will mean that some things (such as attachments) will be lost anyway. Drafts are also stored on the phpBB database, on the backend, so if something goes wrong with your connection and/or the database connection... you'll lose your draft as well.
 
-This extension tries to replicate the most basic solution to the above issues. It uses your browser's local storage facility, which can be accessed using JavaScript. Although details differ between browsers, in general, each will persist the data across crashes. It should also be able to deal with most issues of lost typed content on posts (including on Quick Reply) as well as on Private Messages (PMs), as well as eliminating stale content taking up wasted space on the browser's local storage facility (at least, up to a point). Of course, all of this is only possible for _one_ browser on _one_ computer (as oppoesed to "Save Draft", which should work across browsers/computers/physical locations).
+This extension tries to replicate the most basic solution to the above issues. It uses your browser's local storage facility, which can be accessed using JavaScript. Although details differ between browsers, in general, each will persist the data across crashes. It should also be able to deal with most issues of lost typed content on posts (including on Quick Reply) as well as on Private Messages (PMs), as well as eliminating stale content taking up wasted space on the browser's local storage facility (at least, up to a point). Of course, all of this is only possible for _one_ browser on _one_ computer (as opposed to "Save Draft", which should work across browsers/computers/physical locations).
 
 ## Installation