Fix typo in spaces-pushouts.tex

Thanks to Matthieu Romagny
http://stacks.math.columbia.edu/tag/0AGF#comment-1155
http://stacks.math.columbia.edu/tag/0AGF#comment-1156

spaces-pushouts.tex

@@ -1229,7 +1229,7 @@ \section{Coequalizers and glueing}
 \label{section-coequalizer-glue}
 
 \noindent
-Let $X$ be a Noeterian algebraic space and $Z \to X$ a closed subscheme.
+Let $X$ be a Noetherian algebraic space and $Z \to X$ a closed subscheme.
 Let $X' \to X$ be the blowing up in $Z$. In this section we show that
 $X$ can be recovered from $X'$, $Z_n$ and glueing data where $Z_n$
 is the $n$th infinitesimal neighbourhood of $Z$ in $X$.
@@ -1244,7 +1244,7 @@ \section{Coequalizers and glueing}
 }
 $$
 be a commutative diagram of algebraic spaces over $S$. Assume
-$B$ Noeterian, $g$ proper and surjective, and $X \to B$ separated
+$B$ Noetherian, $g$ proper and surjective, and $X \to B$ separated
 of finite type. Let $R = Y \times_X Y$ with projection morphisms
 $t, s : R \to Y$.  There exists a coequalizer $X'$ of $s, t : R \to Y$
 in the category of algebraic spaces separated over $B$. The morphism