[present_values] Update present values lecture

lectures/pv.md

@@ -72,9 +72,9 @@ We say equation**s**, plural, because there are $T+1$ equations, one for each $t
 
 Equations {eq}`eq:Euler1` assert that price paid to purchase the asset at time $t$ equals the payout $d_t$ plus the price at time $t+1$ multiplied by a time discount factor $\delta$.
 
-Discounting tomorrow's price by multiplying it by $\delta$ accounts for the ``value of waiting one period''.
+Discounting tomorrow's price by multiplying it by $\delta$ accounts for the ''value of waiting one period''.
 
-We want to solve the system of $T+1$ equations {eq}`eq:Euler1` for the asset price sequence $\{p_t\}_{t=0}^T $ as a function of the divident sequence $\{d_t\}_{t=0}^T $ and the exogenous terminal
+We want to solve the system of $T+1$ equations {eq}`eq:Euler1` for the asset price sequence $\{p_t\}_{t=0}^T $ as a function of the dividend sequence $\{d_t\}_{t=0}^T $ and the exogenous terminal
 price $p_{T+1}^*$.
 
 A system of equations like {eq}`eq:Euler1` is an example of a linear **difference equation**.