Adding a link to the auth documentation

[klcodanr]

Description

Adding a link to the Add Auth command documentation

Related Issue

#123

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• [N/A] I have added tests to cover my changes.
• [N/A] All new and existing tests passed.

[codecov]

Codecov Report

Merging #125 into master will increase coverage by 5.38%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #125      +/-   ##
==========================================
+ Coverage   92.43%   97.82%   +5.38%     
==========================================
  Files          18       18              
  Lines         410      460      +50     
  Branches       47       54       +7     
==========================================
+ Hits          379      450      +71     
+ Misses         27       10      -17     
+ Partials        4        0       -4

Impacted Files	Coverage Δ
src/commands/app/use.js	100% <100%> (ø)	⬆️
src/commands/app/logs.js	100% <100%> (+75%)	⬆️
src/commands/app/init.js	100% <100%> (ø)	⬆️
src/lib/import.js	100% <100%> (ø)	⬆️

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