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README.md

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+NOTE: We are doing a kind of clean up in the list of issues and pull requests, the aim is to get to a kind of state where we can stamp it stable, and of course a more updated version we stamp unstable that will need testing. For the last part we need a lot of people with different machines that are willing to test the firmware so we can stamp it as stable. If you want to help out testing go to this issue and let us know: https://github.com/ErikZalm/Marlin/issues/1209
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+NOTE1: For submitting pull requests we ask that you PLEASE test the code first before submitting. When creating the pull request let us know what hardware you have tested on and how, just in short words. Pull requests that are not tested will likely not be merged as one slight change can risk breaking the code.
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+NOTE2: If you have a fix don't open an issue telling about it, but test the code and submit a pull request.
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 Marlin 3D Printer Firmware
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