minor tweak

Doc/whatsnew/whatsnew25.tex

@@ -1423,7 +1423,7 @@ The \member{st_flags} member is also available, if the platform supports it.
 
 \item The Python debugger provided by the \module{pdb} module
 can now store lists of commands to execute when a breakpoint is
-reached and execution stops.  Once breakpoint #1 has been created,
+reached and execution stops.  Once breakpoint \#1 has been created,
 enter \samp{commands 1} and enter a series of commands to be executed,
 finishing the list with \samp{end}.  The command list can include
 commands that resume execution, such as \samp{continue} or