Update User Guide

[yanghengtang]

Resolved the following issues

• Reorder the layout of the features (Closes #276)
• Add missing emoji in edit_d (Closes #270)
• Advised users on extremely long phone numbers (Closes #251)
• Update definition in Parameters Table
• Correct naming of ViewPatient image
• Bolded "Format", "Examples" and "Sample Usage"
• Pointed out that only one tag can be added/deleted a time

[codecov[bot]]

Codecov Report

Merging #287 (3a1a689) into master (873b3b3) will not change coverage. The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #287   +/-   ##
=========================================
  Coverage     80.79%   80.79%           
  Complexity      938      938           
=========================================
  Files           137      137           
  Lines          2833     2833           
  Branches        275      275           
=========================================
  Hits           2289     2289           
  Misses          511      511           
  Partials         33       33           

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