Add terminal example in Quickstart section of UG

[codecov[bot]]

Codecov Report

Merging #290 (1669909) into master (3f30d2f) will not change coverage. Report is 4 commits behind head on master. The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #290   +/-   ##
=========================================
  Coverage     70.11%   70.11%           
  Complexity      564      564           
=========================================
  Files            93       93           
  Lines          1874     1874           
  Branches        214      214           
=========================================
  Hits           1314     1314           
  Misses          483      483           
  Partials         77       77           

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[RB9823]

LGTM