fix: corrected all relative paths of index.md

[rajRishi22]

Solved the issue #1294 partially , corrected all the relative paths in index.md.

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Latest commit: 02dd677

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[derberg]

closing, as #1294 was closed - no action needed, as changes in this PR would actually break docs links