UG and md file changes

[codecov[bot]]

Codecov Report

Merging #260 (ec9ab67) into master (30efcdf) will decrease coverage by 0.78%. The diff coverage is 8.33%.

@@             Coverage Diff              @@
##             master     #260      +/-   ##
============================================
- Coverage     70.76%   69.98%   -0.78%     
- Complexity      565      567       +2     
============================================
  Files            94       94              
  Lines          1878     1886       +8     
  Branches        211      216       +5     
============================================
- Hits           1329     1320       -9     
  Misses          488      488              
- Partials         61       78      +17     

Files	Coverage Δ
...va/seedu/address/logic/commands/CommandResult.java	88.88% <50.00%> (-7.12%)	:arrow_down:
...va/seedu/address/logic/commands/DeleteCommand.java	91.48% <0.00%> (-2.13%)	:arrow_down:
...java/seedu/address/logic/commands/ExitCommand.java	33.33% <0.00%> (-66.67%)	:arrow_down:
...java/seedu/address/logic/commands/HelpCommand.java	33.33% <0.00%> (-66.67%)	:arrow_down:
...java/seedu/address/logic/commands/ListCommand.java	50.00% <0.00%> (-50.00%)	:arrow_down:
...java/seedu/address/logic/commands/UndoCommand.java	70.00% <0.00%> (-18.89%)	:arrow_down:
...rc/main/java/seedu/address/logic/LogicManager.java	70.37% <0.00%> (-8.80%)	:arrow_down:
...java/seedu/address/logic/commands/EditCommand.java	93.47% <0.00%> (-3.27%)	:arrow_down:

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[RB9823]

LGTM

[RB9823]

LGTM