Remove paren around bonus question

diff --git a/src/part10.rs b/src/part10.rs
index 85631127ca87b8b0f20bd90443aec017215cb510..2ba31f3904a850588532f2a821585f4a8dfecbcf 100644 (file)
--- a/src/part10.rs
+++ b/src/part10.rs
@@ -169,8 +169,8 @@ fn filter_vec_by_divisor(v: &Vec<i32>, divisor: i32) -> Vec<i32> {
 // [Read its documentation here.](https://doc.rust-lang.org/stable/std/option/enum.Option.html#method.map)
 // Which functions in previous parts can you rewrite to use `map` instead?
 // (Hint: read the source code of `map`, and see if the pattern appears in your own code.)
-// (Bonus: [`test_invariant` in Part 05](part05.html#section-6) doesn't use `match`,
-// but can you still find a way to rewrite it with `map`?)
+// Bonus: [`test_invariant` in Part 05](part05.html#section-6) doesn't use `match`,
+// but can you still find a way to rewrite it with `map`?
 
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