Update DG

[frrrrry]

• Add content page for dg
• Add implementation for features delete, unfav and proposed edit feature
• Update implementation for fav feature
• Add line breaks for pdf conversion
• Change version number for release
• Update fry's ppp

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (3e8fe70) 77.40% compared to head (7388927) 77.40%.
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master     #280   +/-   ##
=========================================
  Coverage     77.40%   77.40%           
  Complexity      579      579           
=========================================
  Files            89       89           
  Lines          1894     1894           
  Branches        183      183           
=========================================
  Hits           1466     1466           
  Misses          386      386           
  Partials         42       42           

Files	Coverage Δ
src/main/java/seedu/address/MainApp.java	0.00% <0.00%> (ø)

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[xxiaoweii]

Lgtm!