[C++][Markdown][Security] Exclude Badges in Generated README.md

[Chrimle]

Embedding "Badges" in Markdown could pose varying Security risks. Although the currently generated Badges appear innocent, they will invoke HTTP GET requests to the embedded URLs. One of the badges, links to the MIT license, which is little-to-no-use, as a regular link would suffice. The other badge, links to a 404 page. Hence, keeping these badges around is just a security liability.

PR checklist

• Read the contribution guidelines.
• Pull Request title clearly describes the work in the pull request and Pull Request description provides details about how to validate the work. Missing information here may result in delayed response from the community.
• Run the following to build the project and update samples:

  ./mvnw clean package || exit
  ./bin/generate-samples.sh ./bin/configs/*.yaml || exit
  ./bin/utils/export_docs_generators.sh || exit
  

  (For Windows users, please run the script in WSL)
  Commit all changed files.
  This is important, as CI jobs will verify all generator outputs of your HEAD commit as it would merge with master.
  These must match the expectations made by your contribution.
  You may regenerate an individual generator by passing the relevant config(s) as an argument to the script, for example ./bin/generate-samples.sh bin/configs/java*.
  IMPORTANT: Do NOT purge/delete any folders/files (e.g. tests) when regenerating the samples as manually written tests may be removed.
• File the PR against the correct branch: master (upcoming 7.x.0 minor release - breaking changes with fallbacks), 8.0.x (breaking changes without fallbacks)
• If your PR solves a reported issue, reference it using GitHub's linking syntax (e.g., having "fixes #123" present in the PR description)
• If your PR is targeting a particular programming language, @mention the technical committee members, so they are more likely to review the pull request.

---

Summary by cubic

Remove Travis CI and MIT license badges from the cpp-qt-qhttpengine-server README template and update generated samples to match. This prevents external HTTP requests from badges and removes a broken link in generated README files.

^{Written for commit bc23a1c. Summary will update on new commits.}

[Chrimle]

Ready for review 🙌 @wing328

[cubic-dev-ai]

No issues found across 2 files

[wing328]

cc @bbdouglas (2017/07) @sreeshas (2017/08) @jfiala (2017/08) @lukoyanov (2017/09) @cbornet (2017/09) @jeff9finger (2018/01) @karismann (2019/03) @Zomzog (2019/04) @lwlee2608 (2019/10) @martin-mfg (2023/08)