Include link when there are no changes

[jbolda]

Motivation

When there are no changes, we want to also include a link to add a change file. Arguably the more important situation too!

Approach

Add content below some as in the comment with existing changes.

[github-actions]

Package Changes Through 917451c

There are 9 changes which include covector with minor, action with minor, @covector/apply with minor, @covector/assemble with minor, @covector/changelog with minor, @covector/files with minor, @covector/command with minor, @covector/toml with minor, @covector/types with minor

Planned Package Versions

The following package releases are the planned based on the context of changes in this pull request.

package	current	next
covector	0.11.0	0.12.0
@covector/apply	0.9.3	0.10.0
@covector/assemble	0.11.0	0.12.0
@covector/changelog	0.11.0	0.12.0
@covector/files	0.7.2	0.8.0
@covector/command	0.7.1	0.8.0
@covector/toml	0.1.0	0.2.0
@covector/types	0.0.0	0.1.0
action	0.11.0	0.12.0

Add another change file through the GitHub UI by following this link.

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Read about change files or the docs at github.com/jbolda/covector