Fix typos in statement 0AN8

Thanks to Brian Conrad
http://stacks.math.columbia.edu/tag/0AN8#comment-1952

formal-spaces.tex

@@ -3276,16 +3276,16 @@ \section{Morphisms representable by algebraic spaces}
 \begin{enumerate}
 \item $Y$ is McQuillan, i.e., equal to $\text{Spf}(B)$ for some
 weakly admissible topological $S$-algebra $B$, and
-\item $f : Y \to X$ is representable by algebraic spaces and \'etale.
+\item $f : X \to Y$ is representable by algebraic spaces and \'etale.
 \end{enumerate}
 Then there exists an \'etale ring map $B \to A$ such that
 $$
-Y = \text{Spf}(A^\wedge)
+X = \text{Spf}(A^\wedge)
 \quad\text{where}\quad
 A^\wedge = \lim A/JA
 $$
 with $J \subset B$ running over the weak ideals of definition of $B$.
-In particular, $Y$ is McQuillan.
+In particular, $X$ is McQuillan.
 \end{lemma}
 
 \begin{proof}