Initial import of libdpf.

Co-authored-by: Cursor <cursoragent@cursor.com>

thirdparty/json/docs/README.md

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+# Documentation
+
+## Generate documentation
+
+Note on documentation: The source files contain links to the online documentation at https://json.nlohmann.me. This URL
+contains the most recent documentation and should also be applicable to previous versions; documentation for deprecated
+functions is not removed, but marked deprecated.
+
+If you want to see the documentation for a specific tag or commit hash, you can generate it as follows (here for tag
+`v3.10.2`):
+
+```shell
+git clone https://github.com/nlohmann/json.git
+cd json
+git checkout v3.10.2
+make install_venv serve -C docs/mkdocs
+```
+
+Open URL <http://127.0.0.1:8000/> in your browser. Replace from any URL from the source code `https://json.nlohmann.me`
+with `http://127.0.0.1:8000` to see the documentation for your tag or commit hash.