merge website changes in#20

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MC42 wants to merge 7 commits intogh-pagesfrom

Commits on Dec 13, 2018

added 2018 robot
Emily
committed

Commits on Apr 22, 2019

updated robot images
Emily
committed

Commits on Apr 23, 2019

Starting to update awards on test-branch
Harshita Garg
committed

Commits on Apr 25, 2019

finished updating awards
C9
committed
awards
C9
committed
Merge branch 'gh-pages' into test-branch
C9
committed
Fixed merge errors and finally added awards
C9
committed