Fix typo in sites-modules

Thanks to Ko Aoki
https://stacks.math.columbia.edu/tag/08M3#comment-2956

sites-modules.tex

@@ -3310,7 +3310,7 @@ \section{Closed immersions of ringed topoi}
 \begin{lemma}
 \label{lemma-i-star-equivalence}
 Let $i : (\Sh(\mathcal{C}), \mathcal{O}) \to (\Sh(\mathcal{D}), \mathcal{O}')$
-be a morphism of ringed topoi. Assume $i$ is a closed immersion of topi
+be a morphism of ringed topoi. Assume $i$ is a closed immersion of topoi
 and $i^\sharp : \mathcal{O}' \to i_*\mathcal{O}$ is surjective.
 Denote $\mathcal{I} \subset \mathcal{O}'$ the kernel of $i^\sharp$.
 The functor