docs: improve guide page section

[YashPimple]

Description:

Enhances the consistency of page titles under the "guides" section to provide a more user-friendly navigation experience for Keptn users.

Fixes #2921

Changes made

• updated the navigation structure in the MkDocs file to reflect the modified page titles.
• ensured that main keyword/topic is placed at the beginning of each page title.

Checklist

• My PR fulfills the Definition of Done of the corresponding issue and not more (or parts if the issue is separated
  into multiple PRs)
• I used descriptive commit messages to help reviewers understand my thought process
• I signed off all my commits according to the Developer Certificate of Origin (DCO)
  see Contribution Guide
• My PR title is formatted according to the semantic PR conventions described in
  the Contribution Guide
• My code follows the style guidelines of this project (golangci-lint passes, YAMLLint passes)
• I regenerated the auto-generated docs for Helm and the CRD documentation (if applicable)
• I have performed a self-review of my code
• I have made corresponding changes to the documentation (if needed)
• My changes result in all-green PR checks (first-time contributors need to ask a maintainer to approve their test runs)
• New and existing unit and integration tests pass locally with my changes

[odubajDT]

Hi @YashPimple any updates on this?

[YashPimple]

Hi @YashPimple any updates on this?

Hii @odubajDT I have made the suggested changes prior only it just need to get reveiwed

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud