More FAQ fixes.

www/index.html

@@ -65,7 +65,8 @@
         when new blocks will be mined.  <em>On average</em>, new blocks are
         mined every 10 minutes, but this can vary a lot.  So it's hard to
         predict <em>exactly</em> when block number 630000 will be mined, but all
-        answers will converge when the time comes.
+        answers will converge when the time comes.  Since everyone does the math
+        slightly differently we all get slightly different answers.
       </p>
 
       <p>
@@ -74,11 +75,11 @@
       <p>
         A: Probably not.  But it's been observed that crypto bull markets have
         happened in the (roughly) year after each of the previous two halvings,
-        so take that how you will
+        so take that how you will.
       </p>
 
       <p>
-        Q: Bear markets?  Does that mean I should buy Bitcoin?
+        Q: Bull markets?  Does that mean I should buy Bitcoin?
       </p>
       <p>
         A: That's up to you.  I'm not your financial advisor.  Don't invest what