Apply suggestions from code review

Co-Authored-By: Emil Gardström <emil.gardstrom@gmail.com>

Author: cr1901

src/generate/device.rs

@@ -33,10 +33,10 @@ pub fn render(
     let doc = format!(
         "Peripheral access API for {0} microcontrollers \
          (generated using svd2rust v{1}{2})\n\n\
-         You can find an overview of the API as of release v{1} [here].\n\n\
-         Docs containing API features to be included in the [next] \
+         You can find an overview of the generated API [here].\n\n\
+         API features to be included in the [next] svd2rust \
          release can be generated by cloning the svd2rust [repository], \
-         checking out the above commit, and running `cargo doc`.\n\n\
+         checking out the above commit, and running `cargo doc --open`.\n\n\
          [here]: https://docs.rs/svd2rust/{1}/svd2rust/#peripheral-api\n\
          [next]: https://github.com/rust-embedded/svd2rust/blob/master/CHANGELOG.md#unreleased\n\
          [repository]: https://github.com/rust-embedded/svd2rust",