Add implementation details to DG

[justintzuriel]

No description provided.

[codecov-io]

Codecov Report

Merging #128 into master will not change coverage.
The diff coverage is 0.00%.

@@            Coverage Diff            @@
##             master     #128   +/-   ##
=========================================
  Coverage     74.06%   74.06%           
  Complexity      708      708           
=========================================
  Files           109      109           
  Lines          1986     1986           
  Branches        236      236           
=========================================
  Hits           1471     1471           
  Misses          442      442           
  Partials         73       73           

Impacted Files	Coverage Δ	Complexity Δ
...a/seedu/address/model/module/UniqueModuleList.java	68.83% <0.00%> (ø)	28.00 <0.00> (ø)

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[florenciamartina]

LGTM