typo

rsa250/README.md

@@ -233,7 +233,7 @@ to perform again exactly the same computation, we provide in the
 produced for each 100M special-q sub-range.
 
 We can then have a visual plot of this data, as shown in
-[`plot_count_rel.pdf`](plot_count_rel.pdf)
+[`plot_rel_count.pdf`](plot_rel_count.pdf)
 where we see the drop in the number of relations produced per special-q
 when changing the strategy. The plot is very regular on the two
 sub-ranges.