docs: add context to timeuuid v1 feature

docs/source/data-types/timeuuid.md

@@ -37,7 +37,7 @@ cargo add uuid -F v1
 
 and now you're gonna be able to use the `uuid::v1` features: 
 
-```rust,ignore
+```rust
 # extern crate uuid;
 # extern crate scylla;
 # use scylla::Session;