Version header is h3 instead of h2 when header has a compare link

After creating a new repo and running standard version twice the header for the version line is h3 instead of h2, like the following example.

# Changelog

All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.

### [1.1.1](///compare/v1.1.0...v1.1.1) (2019-10-25)

## 1.1.0 (2019-10-25)


### Features

* a commit 6dbf7a9

You can reproduce this issue by running the following

mkdir foo
cd foo
npm init -y
npm install -D standard-version
git init
echo -e "node_modules" > .gitignore
git add package.json
git commit -m "feat: a commit"
standard-version
cat CHANGELOG.md
// here the changelog will have a line like
// ## 1.1.0 (2019-10-25)
// with h2, the expected result

standard-version
cat CHANGELOG.md
// here the changelog will have a line like
// ### [1.1.1](///compare/v1.1.0...v1.1.1) (2019-10-25)
// with h3, which isn't the expected result, it should be h2

[negebauer]

and by the way, why is it h3 for patches? I thought this was based on keepachangelog which users h2 for all versions

[Yogu]

and by the way, why is it h3 for patches? I thought this was based on keepachangelog which users h2 for all versions

Agree, this is really weird because

• the types like “Bugfixes” are now on the same level as the versions
• patches appear as subheadings of the next minor/major release. If the last release is a patch release, a heading level is missing.

To me, the result just looks broken