Document missing keywords

[mfalkvidd]

The following keywords need Doxygen comments and inclusion in keywords.txt

• [ ] MY_NRF5_RX_BUFFER_SIZE
• [ ] MY_OTA_I2C_ADDR
• [ ] MY_RFM69_DEFAULT_LISTEN_IDLE_US (already present in keywords.txt but no Doxygen)
• [ ] MY_RFM69_DEFAULT_LISTEN_RX_US (already present in keywords.txt but no Doxygen)
• [ ] MY_RF69_DIO5
• [ ] MY_RFM95_ATC_TARGET_RSSI_DBM (already present in keywords.txt but no Doxygen)
• [ ] MY_RFM95_ENABLE_ENCRYPTION
• [ ] MY_W5100_SPI_EN (already present in keywords.txt but no Doxygen)

I don't know enough about how they are meant to be used to document them properly.

[mfalkvidd]

ARGH!!

There are now new missing keywords that lack documentation: MY_AVR_TEMPERATURE_GAIN MY_AVR_TEMPERATURE_OFFSET MY_CRYPTO_SHA256_ASM MY_ESP32_TEMPERATURE_GAIN MY_ESP32_TEMPERATURE_OFFSET MY_NRF5_RX_BUFFER_SIZE MY_SAMD_TEMPERATURE_GAIN MY_SAMD_TEMPERATURE_OFFSET MY_STM32F1_TEMPERATURE_GAIN MY_STM32F1_TEMPERATURE_OFFSET MY_TRANSPORT_ENCRYPTION