Added a missing single quote in landings.html

[ghost]

No description provided.

[codecov]

Codecov Report

Merging #139 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #139   +/-   ##
=======================================
  Coverage   90.17%   90.17%           
=======================================
  Files          19       19           
  Lines         641      641           
  Branches      128      128           
=======================================
  Hits          578      578           
  Misses         52       52           
  Partials       11       11

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