Typo in algebra

THanks to Manuel Hoff
https://stacks.math.columbia.edu/tag/00UH#comment-3965

algebra.tex

@@ -38378,7 +38378,7 @@ \section{\'Etale ring maps}
 the ring map $R \to R'[1/\Delta]$ and the prime
 $\mathfrak p' R'[1/\Delta]$. Because $\text{Res}_x(f, g)$ is
 invertible in this ring the Sylvester matrix is invertible over
-$R'$ and hence $1 = a g +  b h$ for some $a, b \in R'[x]$
+$R'[1/\Delta]$ and hence $1 = a g +  b h$ for some $a, b \in R'[1/\Delta][x]$
 see Example \ref{example-factor-polynomials-etale}.
 \end{proof}