fixed a typo in a Note text

opsdetails.tex

@@ -18,7 +18,7 @@ \subsection{Ops Cost details}\label{sec:opsdetails}
 \tabref{tab:opsOverheadCost} gives the annual cost of hosting compute in NCSA. This includes purchasing racks to house
 new nodes etc.
 \input{opsOverheadCost}
-{bf Note:} rack costs are for new racks so only paid for the added racks each year, hence some zeros appear when we do not intend to add racks.
+{\bf Note:} rack costs are for new racks so only paid for the added racks each year, hence some zeros appear when we do not intend to add racks.
 
 For Chile \tabref{tab:opsOverheadChile} gives the cost of hosting in Chile (las Serena).
 \input{opsOverheadChile}