Update links for this pull request template

[cjprybol]

A clear and descriptive title (No issue numbers please)

This template is rather extensive. Fill out all that you can, if are a new contributor or you're unsure about any section, leave it unchanged and a reviewer will help you 😄. This template is simply a tool to help everyone remember the BioJulia guidelines, if you feel anything in this template is not relevant, simply delete it.

Types of changes

This PR implements the following changes:
(Please tick any or all of the following that are applicable)

• ✨ New feature (A non-breaking change which adds functionality).
• 🐛 Bug fix (A non-breaking change, which fixes an issue).
• 💥 Breaking change (fix or feature that would cause existing functionality to change).

📋 Additional detail

• If you have implemented new features or behaviour

  • Provide a description of the addition in as many details as possible.

  • Provide justification of the addition.

  • Provide a runnable example of use of your addition. This lets reviewers
    and others try out the feature before it is merged or makes it's way to release.

• If you have changed current behaviour...

  • Describe the behaviour prior to you changes

links were out of date

• Describe the behaviour after your changes and justify why you have made the changes,
  Please describe any breakages you anticipate as a result of these changes.

• Does your change alter APIs or existing exposed methods/types?
  If so, this may cause dependency issues and breakages, so the maintainer
  will need to consider this when versioning the next release.

• If you are implementing changes that are intended to increase performance, you
  should provide the results of a simple performance benchmark exercise
  demonstrating the improvement. Especially if the changes make code less legible.

☑️ Checklist

• 🎨 The changes implemented is consistent with the julia style guide.
• 📘 I have updated and added relevant docstrings, in a manner consistent with the documentation styleguide.
• 📘 I have added or updated relevant user and developer manuals/documentation in docs/src/.
• 🆗 There are unit tests that cover the code changes I have made.
• 🆗 The unit tests cover my code changes AND they pass.
• 📝 I have added an entry to the [UNRELEASED] section of the manually curated CHANGELOG.md file for this repository.
• 🆗 All changes should be compatible with the latest stable version of Julia.
• 💭 I have commented liberally for any complex pieces of internal code.

[codecov]

Codecov Report

Merging #113 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #113   +/-   ##
=======================================
  Coverage   81.78%   81.78%           
=======================================
  Files          44       44           
  Lines        2783     2783           
=======================================
  Hits         2276     2276           
  Misses        507      507           

Flag	Coverage Δ
#unittests	81.78% <ø> (ø)

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