clarify rules

rules/hitting_things.tex

 \subsubsection{Combat}
-needs a coin to mark your \glspl{ap}.
-Start with $3 + Speed$.
+needs a coin to track your \glspl{ap}.
+Start each round with 3 + Speed.
 You act in any order, but those with more \glspl{ap} can interrupt (shorter actions break ties).
 
 \begin{description}

rules/weight.tex

@@ -11,5 +11,5 @@ Every point over a limit becomes an Encumbrance Penalty.
   A body's \gls{weight} equals total \glspl{hp}.
   \item
   \Glspl{ep} emerge after exercise, sleeplessness, or hunger.
-  Each has \pgls{weight}~1.
+  Each has \pgls{weight} of~1.
 \end{itemize}