[docs] Explicitly linked to an implied location

I expect that link is something that would be easily lost if another item is added.

doc/FAQ.md

@@ -29,7 +29,7 @@ Reference: http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?pid=259791#pid
 
 ## VirtualAlloc failed
 
-If you set up the user rights properly (see above), and your system has 4-8GB of RAM (50%+ use), there is a significant chance that there simply won't be a large enough chunk of contiguous memory because Windows is fairly bad at mitigating memory fragmentation.
+If you set up the user rights properly ([see above](https://github.com/fireice-uk/xmr-stak/blob/master/doc/FAQ.md#selockmemoryprivilege-failed)), and your system has 4-8GB of RAM (50%+ use), there is a significant chance that there simply won't be a large enough chunk of contiguous memory because Windows is fairly bad at mitigating memory fragmentation.
 
 If that happens, disable all auto-staring applications and run the miner after a reboot.