fix fig2

[jaybee84]

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Manuscript checklist

Unless otherwise noted above, this PR will be considered ready for review when all four items have been checked.

• [ ] All changes to text follow "one sentence per line" [Manubot instructions]
• [ ] All citations follow the Manubot citation instructions
• [ ] All changes or additions to tables follow the Manubot table instructions
• [ ] All figures follow the Manubot figure instructions
• [ ] All terms that need to be added to glossary have been added to #50
• [ ] There are no new spelling errors identified by the Manubot spellchecker

[AppVeyorBot]

AppVeyor build 1.0.645 for commit f0a6f8252ca3717c99d2f6096dc4716b71167778 is now complete.

Found 6 potential spelling error(s). Preview:

content/02.intro.md:17:TODO content/03.combining-datasets.md:7:hoc content/03.combining-datasets.md:13:ontologies content/03.combining-datasets.md:25:studyThis content/10. box_2_definitions.md:13:ImageNet content/10. box_2_definitions.md:23:undirected...

The rendered manuscript from this build is temporarily available for download at:

• manuscript-1.0.645-f0a6f82.html
  • manuscript-1.0.645-f0a6f82.pdf
  • spelling-errors-1.0.645-f0a6f82.txt
  • spelling-error-locations-1.0.645-f0a6f82.txt

[AppVeyorBot]

AppVeyor build 1.0.646 for commit d21f14272b84ad6472a78f1be39560e92f6ecbd7 is now complete.

Found 6 potential spelling error(s). Preview:

content/02.intro.md:17:TODO content/03.combining-datasets.md:7:hoc content/03.combining-datasets.md:13:ontologies content/03.combining-datasets.md:25:studyThis content/10. box_2_definitions.md:13:ImageNet content/10. box_2_definitions.md:23:undirected...

The rendered manuscript from this build is temporarily available for download at:

• manuscript-1.0.646-d21f142.html
  • manuscript-1.0.646-d21f142.pdf
  • spelling-errors-1.0.646-d21f142.txt
  • spelling-error-locations-1.0.646-d21f142.txt

[AppVeyorBot]

AppVeyor build 1.0.647 for commit 549fd0da704fd8fbe974f243cb034e7b93f06f89 is now complete.

Found 6 potential spelling error(s). Preview:

content/02.intro.md:17:TODO content/03.combining-datasets.md:7:hoc content/03.combining-datasets.md:13:ontologies content/03.combining-datasets.md:25:studyThis content/10. box_2_definitions.md:13:ImageNet content/10. box_2_definitions.md:23:undirected...

The rendered manuscript from this build is temporarily available for download at:

• manuscript-1.0.647-549fd0d.html
  • manuscript-1.0.647-549fd0d.pdf
  • spelling-errors-1.0.647-549fd0d.txt
  • spelling-error-locations-1.0.647-549fd0d.txt