Update src/Hedgehog/Gen.fs

Co-authored-by: AN <[email protected]>

src/Hedgehog/Gen.fs

@@ -165,7 +165,7 @@ module Gen =
         // The code below was added in
         // https://github.com/hedgehogqa/fsharp-hedgehog/pull/239
         // It is more efficient than the code above in that the shrink tree is duplicate free.
-        // However, such a tree does work well when combining applicatively.
+        // However, such a tree does not work well when combining applicatively.
         // The advantage of a duplicate-free shrink tree is less time spent shrinking.
         // The advantage of applicatively combining tree is a potentially smaller shrunken value.
         // The latter is better, so reverting to the previous shrink tree for now.