[Adopters] added markdown file

[cheina97]

Description

This PR adds a markdown file to track adopters of liqo.

[adamjensenbot]

Hi @cheina97. Thanks for your PR!

I am @adamjensenbot.
You can interact with me issuing a slash command in the first line of a comment.
Currently, I understand the following commands:

• /rebase: Rebase this PR onto the master branch (You can add the option test=true to launch the tests
  when the rebase operation is completed)
• /merge: Merge this PR into the master branch
• /build Build Liqo components
• /test Launch the E2E and Unit tests
• /hold, /unhold Add/remove the hold label to prevent merging with /merge

Make sure this PR appears in the liqo changelog, adding one of the following labels:

• feat: 🚀 New Feature
• fix: 🐛 Bug Fix
• refactor: 🧹 Code Refactoring
• docs: 📝 Documentation
• style: 💄 Code Style
• perf: 🐎 Performance Improvement
• test: ✅ Tests
• chore: 🚚 Dependencies Management
• build: 📦 Builds Management
• ci: 👷 CI/CD
• revert: ⏪ Reverts Previous Changes

[Iqqdd99]

Can you add Telefonica Research to de list?

• Industry Vertical: Telco
• Country: Spain
• Year: 2025
• Use Case Type: Research of workload offloading and multicluster solutions.

[cheina97]

Can you add Telefonica Research to de list?

• Industry Vertical: Telco
• Country: Spain
• Year: 2025
• Use Case Type: Research of workload offloading and multicluster solutions.

Of course, thanks

[josephsirak]

@cheina97

Can you also add Outerbounds to this list?

• Industry: ML/AI Platform
• Country: USA
• Year: 2023
• Use Case Type: Multi-Cluster Batch Workload Support.

[cheina97]

@cheina97

Can you also add Outerbounds to this list?

• Industry: ML/AI Platform
• Country: USA
• Year: 2023
• Use Case Type: Multi-Cluster Batch Workload Support.

Of course, thanks