Docs/improve windows installation by aryab08 · Pull Request #193 · su2code/su2code.github.io

- Removed _docs/ directory containing old installation guides
- Users should refer to docs_v7/ for current documentation
- Fixes #2475

- Added prominent WSL recommendation for Windows users
- Included step-by-step WSL installation guide
- Added warnings about native build MPI linking issues
- Referenced issue #1468

Fixes #1468

- Commented out _docs collection in _config.yml (lines 53-60)
- Updated develop.html to link to docs_v7 instead of old docs
- Kept _docs_v7 configuration active
- Addresses maintainer feedback about _docs references

Related to #2475