Added course on cloud computing

[metabiswadeep]

What does this PR do?

Added a free course on cloud computing.

Description

Added a free course on cloud computing to master google cloud and also enable you to take the google cloud certification exam and ace it.

Checklist:

• [x] Read our contributing guidelines.
• [x] Search for duplicates.
• [x] Include author(s) and platform where appropriate.
• [x] Put lists in alphabetical order, correct spacing.
• [x] Add needed indications (PDF, access notes, under construction).
• [x] Used an informative name for this pull request.

Follow-up

• Check the status of GitHub Actions and resolve any reported warnings!

[metabiswadeep]

Please check now @davorpa

[eshellman]

please resolve conflicts.