Feat: Added the Secondary navbar to each page and Updated links (issue: #79)

[dipak-01]

1. Added the secondary navbar to each page and updated their links as per need.
2. Moved the script to the correct Location in some files as it was not loading the script.

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[dipak-01]

Kindly merge it with the hacktoberfest-accepted lable.

[dipak-01]

Issue #79