Fix minor typo

README.md

@@ -442,7 +442,7 @@ Everywhere, All at Once_.
   in play. **VARIATION**: Especially when playing without the robber, _CK_
   knights can feel under-utilized, since they're rarely in position the chase
   the pirate away, and displacement tends to happen less often, since _EP_ road
-  networks tend to be smaller . A possible variation to the _Everything,
+  networks tend to be smaller. A possible variation to the _Everything,
   Everywhere, All at Once_ scenarios is to add Largest Army back into play.
   To determine who to award it to, count only the _number_ of knights each
   player has, regardless of activation status or strength (basic, strong, or