OBD Fault Code page confuses hexadecimal and decimal

[nmschulte]

OBD Fault Code page confuses hexadecimal (standard OBD space) and decimal representations (custom OBD space)

also fix the malformed (bare) URL to OBD II FAQ (https://www.obd-codes.com/faq/obd2-codes-explained.php)
also note FOME-Tech/fome-fw#606

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custom: https://wiki.fome.tech/Limits-And-Protections/Fault-Codes/#fome-specific-custom-codes-are-listed-below

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standard: https://wiki.fome.tech/Limits-And-Protections/Fault-Codes/#standard-obd-fault-codes-used-by-fome