Update to parameter as optional for eth_call

[rolandtyler]

Signed-off-by: Roland Tyler [email protected]

Describe the change

Remove the note stating the to parameter is required for transaction call object for eth_call

Issue fixed

Fixes #933

Impacted parts

For content changes

• Doc content
• Doc pages organisation

For tools changes

• CircleCI workflow
• Build and QA tools (lint, vale,…)
• MkDocs templates
• MkDocs configuration
• Python dependencies
• Node dependencies and JavaScript
• ReadTheDocs configuration
• GitHub integration

Testing

https://hyperledger-besu--937.org.readthedocs.build/en/937/Reference/API-Objects/#transaction-call-object

[macfarla]

for this one I think it would also be good to add an example on the eth_call page with the "simulate a contract creation" scenario (ie include the request/response json)

[alexandratran]

A suggestion.