#36 GL-AR300M documentation

Added unofficial documentation to the GL-AR300M.

I am not sure what to add.

Please edit: The flashing procedure is not quite accurate. On step 3, the LEDs will flash once, and then the red LED flashes five times. You must release the reset button right after the fifth flash.

It is worth mentioning on step 5 that the uboot from gl-inet will have one button for uploading NAND firmware and one button for uploading NOR firmware.

I have GL-AR300M units here that I have flashed recently. I could insert compiling instructions for the NAND firmware, but I was under the impression RISCI_ATOM didn't want the GL routers documented. I'll wait to see what happens with this pull request.

This is a great start at documenting the GL-AR300M.

The flashing procedure is not quite accurate. On step 3, the LEDs will flash once, and then the red LED flashes five times. You must release the reset button right after the fifth flash.

That is only applicable to GL Inet's changed u-boot-mod (across all devices). U-boot-mod by default sets this interval to release after 3 sec. or the third LED flash.

Did I commit to the correct branch? Sometimes I feel like I should have committed to the master branch

Thanks RISCI_ATOM. It may be worth mentioning possible discrepancies in the doc, in case somebody loads the LibreCMC firmware on a new device before loading the uboot.

@Somenut: They've been having me put the pull request again v1.4, since that is what docs show up by default from the wiki link. I imagine RISCI_ATOM will keep it that way until v1.5 is released.