#772: Audit and make documentation for command JSON.CLEAR consistent

[nm123github]

Summary of Changes

Audit documentation for JSON.CLEAR and make it consistent with the existing implementation.
#772

Changes Made

• Attempted to follow documentation format in SET
• Found some discrepancies in ## Behaviour section which i changed.
• Fixed few things in the ## Errors section.

[apoorvyadav1111]

Hi @nm123github , Most of the changes look good. However, would it be possible to modify example section of this document with bash code block as per below:

Examples: List all possible examples of the command and the expected output. Assume CLI implementation
the CLI prompt should be 127.0.0.1:7379> and not anything else

For reference, please check out the https://dicedb.io/commands/jsonget/#example-usage example section. Note that the overall documentation of json.get is yet to be revamped but the format of the examples is standardized. Additionally for other sections you can refer to the SET command docs.

Thanks.

[apoorvyadav1111]

Thanks for addressing my comments.

[JyotinderSingh]

Thanks for the contribution @nm123github! Thanks for the reviews @apoorvyadav1111.