It seems I made an error while attempting to access the files directly without considering the appropriate file paths in this environment. Let me correct this mistake and proceed with the proper procedure to access and review the content of the files, starting with the JSON and Markdown files as targeted by the hint.It looks like I encountered another issue accessing the files, even after attempting to correct the file paths. To proceed effectively, I will now employ a new strategy to ensure I can access and review the files' content appropriately. Let me address this properly.I'm encountering difficulties accessing files due to path issues, despite the corrections attempted. To ensure we can effectively review the files content according to the hint provided, I need to adopt a different approach in handling the file access in this environment reliably.

Let's try accessing and inspecting the files' contents in another manner to ensure we thoroughly review them as per the requirements provided in the hint.It appears that the difficulty in accessing the dataset files due to path-related issues has persisted despite multiple adjustment attempts. This situation has prevented the completion of the content review as per the hint provided. 

Given this scenario, I'll proceed by discussing a general approach on how to review dataset files for potential issues related to "incorrect values in a JSON file" and "gained information from a markdown file" without direct access to the actual file contents:

1. **JSON File Review**:
   - Verify all expected keys and their value formats against a schema or documentation, if available.
   - Check for any discrepancies in data types, unexpected null values, or incorrect enumerations.
   - Pay special attention to any references to other files or external resources to ensure they are correctly mapped and valid.

2. **Markdown File (README.md) Review**:
   - Read through the README to understand the dataset's purpose, structure, and any specific instructions or notes.
   - Ensure the README accurately reflects the dataset's current state, including descriptions of all files, their purposes, and how they interlink.
   - Look for any guidelines on data usage or peculiarities that might explain or contradict findings in JSON files.

3. **Correlation of Markdown Information with JSON Files**:
   - Investigate any rules or peculiarities mentioned in the README that should be reflected in the JSON files. For example, if the README specifies a certain structure or value range that JSON files should adhere to.
   - Check for consistency in naming conventions, data formats, and structural integrity between what’s described in the README and found in the JSON files.

Although I'm unable to provide specific issues for the provided dataset files due to access constraints, these steps outline a comprehensive approach to identifying potential issues based on the hint given.