Fix typo in methods.tex

slides/methods.tex

@@ -43,7 +43,7 @@
 		\end{equation*}
 	\end{block}
 	\begin{itemize}
-		\item Analogously, the average conceptual similarity between T1 and T2 was used as a weakened variant
+		\item Analogously, the average conceptual similarity between $T_1$ and $T_2$ was used as a weakened variant
 	\end{itemize}
 \end{frame}
 \begin{frame}