Update android reference docs

[JaxkDev]

Small typo as found in discord.

PR Checklist:

• All new features have been tested
• All new features have been documented
• I have read the CONTRIBUTING.md file
• I will abide by the code of conduct

[mhsmith]

Thanks, but I think the correct fix here is to add spaces to the .. code-block rather than removing them from the following text, because all of it should be indented within the "JSON dictionary" bullet point.