fix(tx_taproot): missing hide comment

[storopoli]

There is a missing hide comment # in one of the use statements.

[apoelstra]

utACK 57c2f39

Interesting. Does this actually have any effect? Was the old code rendering a floating Txid, Witnss without even a use bitcoin::?

[storopoli]

Yes it was rendering a floating Txid, Witness, but that did not impact tests, since we remove all the hide comments # before running the tests.

[storopoli]

This is explained here:

rust-bitcoin.github.io/cookbook/README.md

Lines 29 to 51 in 03e0e77

	### Testing the code snippets
	Since [`mdbook` does not support external crates](https://github.com/rust-lang/mdBook/issues/706),
	we use [a solution provided by `doc-comment`](https://github.com/rust-lang/mdBook/issues/706#issuecomment-1139423009)
	to test the code snippets in the cookbook.
	First, go to the `tests/` directory:
	```bash
	cd tests
	```
	Then, run the `generate.sh` to automatically generate all tests files:
	```bash
	./generate.sh
	```
	Finally run the tests:
	```bash
	cargo test
	```

[tcharding]

ACK 57c2f39