.Net: Improved Logging for 06-memory-and-embeddings.ipynb (#5638)

### Motivation and Context

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1. This change is required to provide a more detailed and readable
output from the memory search operation.
2. It solves the problem of not having enough information about the
relevance of the search results.
3. This change contributes to the scenario where developers are
debugging or monitoring the memory search operation, as the enhanced
logging will provide more insight into the performance of the search.
4. This change also facilitates learners to modify the search content
and test with the stored vector data.

### Description

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This PR modifies the logging format in the
06-memory-and-embeddings.ipynb file in the semantic-kernel project. The
change involves printing out the question and the corresponding
response's relevance and text. This will help developers better
understand the relevance information of the memory search results.

### Contribution Checklist

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- [x] The code builds clean without any errors or warnings
- [x] The PR follows the [SK Contribution
Guidelines](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
and the [pre-submission formatting
script](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md#development-scripts)
raises no violations
- [x] All unit tests pass, and I have added new tests where possible
- [x] I didn't break anyone 😄

Co-authored-by: Mark Wallace <[email protected]>

dotnet/notebooks/06-memory-and-embeddings.ipynb

@@ -194,7 +194,8 @@
     "foreach (var q in questions)\n",
     "{\n",
     "    var response = await memory.SearchAsync(MemoryCollectionName, q).FirstOrDefaultAsync();\n",
-    "    Console.WriteLine(q + \" \" + response?.Metadata.Text);\n",
+    "    Console.WriteLine(\"Q: \" + q);\n",
+    "    Console.WriteLine(\"A: \" + response?.Relevance.ToString() + \"\\t\" + response?.Metadata.Text);\n",
     "}"
    ]
   },