Minor edits

Advanced/Introduction to Quantum/src/parts/03 two qubits.tex

@@ -2,7 +2,7 @@
 
 
 \definition{}
-Just as before, we'll represent multi-quibit states as linear combinations of multi-qubit basis states. \par
+Just as before, we'll represent multi-qubit states as linear combinations of multi-qubit basis states. \par
 For example, a two-qubit state $\ket{ab}$ is the four-dimensional unit vector
 \begin{equation}
 	\begin{bmatrix}
@@ -33,7 +33,7 @@ we get one of the four basis states with the following probabilities:
 	\item $\mathcal{P}(\ket{10}) = c^2$
 	\item $\mathcal{P}(\ket{11}) = d^2$
 \end{itemize}
-Of course, the sum of all the above probabilities is $1$.
+As before, the sum of all the above probabilities is $1$.
 
 
 \problem{}