Scrub developer-specific /home/<user>/ paths from example docs and test
fixtures so they don't leak into the tree.
- examples/test-cmake/README.md: /home/danbev/... -> /path/to/llama.cpp/...
- tests/test-chat.cpp: /home/jarvis/... -> /home/user/... (input and
expected string kept identical so the parser test still passes)
Co-authored-by: Jim Wu <ywu@xilinx.com>
885c5bbe8e