Tutorial does not accept text written in README.md - Build an SQL Reference Object

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The tutorial is not working properly. I cannot advance because it doesn´t accept my text in the README.md file, even when it´s exactly what I am supposed to write.

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User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/ Safari/537.36

Challenge: Learn Git by Building an SQL Reference Object - Build an SQL Reference Object

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