[Doc] README Updates for Neo4J Dataprep, GraphRAG,

[edlee123]

This issue documents inconsistencies in environment variables for Neo4j Dataprep across different files within the GenAIComps and GenAIExamples repositories. These inconsistencies can lead to confusion and deployment issues.

DATAPREP_PORT:

• GenAIComps/tests/dataprep/test_dataprep_neo4j_on_intel_hpu.sh: 11103.
• GenAIComps/comps/dataprep/src/README_neo4j_llamaindex.md: 6004.
• GenAIExamples/GraphRAG/README.md: Mentions both 11103 and 6007 for dataprep ingest (can use environment variable instead of hardcode).

TEI_EMBEDDER_PORT:

• GenAIComps/tests/dataprep/test_dataprep_neo4j_on_intel_hpu.sh: 12006
• GenAIComps/comps/dataprep/src/README_neo4j_llamaindex.md: 11633
• GenAIExamples/GraphRAG/README.md: 6006

NEO4J_URI / NEO4J_URL:

• GenAIComps/tests/dataprep/test_dataprep_neo4j_on_intel_hpu.sh sets NEO4J_URL.
• GenAIComps/comps/dataprep/src/README_neo4j_llamaindex.md sets both to the same value.
• GenAIExamples/GraphRAG/README.md sets NEO4J_URI.

NEO4J_PLUGINS:

• GenAIComps/tests/dataprep/test_dataprep_neo4j_on_intel_hpu.sh: Sets NEO4J_PLUGINS to ["apoc"].
• GenAIComps/comps/dataprep/src/README_neo4j_llamaindex.md: Does not explicitly set or mention NEO4J_PLUGINS.
• GenAIExamples/GraphRAG/README.md: Does not explicitly set or mention NEO4J_PLUGINS.

NEO4J_PORT2:

• GenAIComps/tests/dataprep/test_dataprep_neo4j_on_intel_hpu.sh: Sets NEO4J_PORT2 to 7687 (and also mentions a commented-out alternative 11632).
• GenAIComps/comps/dataprep/src/README_neo4j_llamaindex.md: Sets NEO4J_PORT2 to 7687 (and also mentions a commented-out alternative 11632). It also sets NEO4J_URI and NEO4J_URL using this port.
• GenAIExamples/GraphRAG/README.md: Does not explicitly set NEO4J_PORT2, but it does mention it in the context of NEO4J_URI and in a table showing port 7687.

Recommendation:

We can choose one set of ports, environment variables e.g. from the unit test, and update accordingly GenAIComps/comps/dataprep/src/README_neo4j_llamaindex.md and GenAIExamples/GraphRAG/README.md.

Roo Prompt (FYI):
"Could you take a look at these files below and check for inconsistencies between them e.g. environment variables, ports? GenAIExamples/GraphRAG/README.md
GenAIComps/tests/dataprep/test_dataprep_neo4j_on_intel_hpu.sh
GenAIComps/comps/dataprep/src/README_neo4j_llamaindex.md"

"Could you also summarize the differences between the files for environment variable NEO4J_PLUGINS=["apoc"], and NEO4J PORT2?"

Perhaps checks of unit tests vs. README can be automated with LLM?

[edlee123]

Note: I'm working on a tool to generate this kind of review for all READMEs vs. unit tests.