V1.3.0 update ug

[YuunoKun]

Update UG

[codecov-io]

Codecov Report

Merging #155 into master will decrease coverage by 0.03%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #155      +/-   ##
============================================
- Coverage     75.15%   75.11%   -0.04%     
- Complexity      913      914       +1     
============================================
  Files           131      131              
  Lines          2652     2656       +4     
  Branches        270      271       +1     
============================================
+ Hits           1993     1995       +2     
- Misses          578      580       +2     
  Partials         81       81              

Impacted Files	Coverage Δ	Complexity Δ
.../java/atas/model/statistics/StudentStatistics.java	87.50% <0.00%> (-4.17%)	18.00% <0.00%> (-1.00%)
src/main/java/atas/ui/HelpWindow.java	0.00% <0.00%> (ø)	0.00% <0.00%> (ø%)
src/main/java/atas/ui/MainWindow.java	0.00% <0.00%> (ø)	0.00% <0.00%> (ø%)
...n/java/atas/logic/parser/AddNoteCommandParser.java	100.00% <0.00%> (ø)	3.00% <0.00%> (ø%)
src/main/java/atas/logic/parser/AtasParser.java	84.44% <0.00%> (+0.72%)	23.00% <0.00%> (+1.00%)
.../java/atas/model/statistics/SessionStatistics.java	96.22% <0.00%> (+3.77%)	23.00% <0.00%> (+1.00%)

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[erisjacey]

LGTM! Just a few nitpicks.

[nweiyue]

LGTM!