Fix CLI Logging and Error Handling

[AkshayBhansali18]

Fix CLI Logging and Error Handling:

1. Disable dispalying usage when an error is not due user input
2. Display Appropriate Error message if invalid path to manifest is provided.
3. Deal with case when server returns an invalid response
4. Fix typo in Readme

[codecov-commenter]

Codecov Report

Merging #76 (d76888b) into main (da87dbd) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main      #76   +/-   ##
=======================================
  Coverage   35.51%   35.51%           
=======================================
  Files          24       24           
  Lines         870      870           
=======================================
  Hits          309      309           
  Misses        530      530           
  Partials       31       31           

Impacted Files	Coverage Δ
cmd/analyse.go	9.80% <ø> (ø)

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[jparsai]

I think it is better that @sawood14012 and @rafiu007 review it as they know Go better than me. Add proper description so reviewers would know for what purpose PR has been raised and why these changes are been done.

[jparsai]

@AkshayBhansali18 you need to rebase and squash commits.

[jparsai]

check this:- https://stackoverflow.com/questions/16306012/github-pull-request-showing-commits-that-are-already-in-target-branch

[jparsai]

@AkshayBhansali18 first try this on a copy of AkshayBhansali18:cli-logging branch to avoid any issues in this PR.

[sawood14012]

LGTM