Correct typos and markup errors (Raymond, thanks for texcheck)
diff --git a/Doc/lib/libcookie.tex b/Doc/lib/libcookie.tex
index 756ba1e..e5d2038 100644
--- a/Doc/lib/libcookie.tex
+++ b/Doc/lib/libcookie.tex
@@ -68,7 +68,7 @@
 
 
 \begin{seealso}
-  \seemodule{cookielib}{HTTP cookie handling for for web
+  \seemodule{cookielib}{HTTP cookie handling for web
     \emph{clients}.  The \module{cookielib} and \module{Cookie}
     modules do not depend on each other.}