get started: wrong md5 of the data.xml

[dniku]

(dvc version and other environment details are probably irrelevant)

https://dvc.org/doc/get-started/add-files suggests that the MD5 hash of data.xml is a304afb96060aad90176268345e10355, but it is actually not:

$ md5sum data.xml
a86ca87250ed8e54a9e2e8d6d34c252e  data.xml

However, .dvc/cache still contains a3/04afb96060aad90176268345e10355. Perhaps a footnote explanation of the discrepancy would help improve the documentation?

[shcheklein]

Most likely:

Related: #68 .
Related: iterative/dvc#992

@dniku to give a bit more context. DVC is doing dos2unix normalization before running md5 on the file. This is why you see this discrepancy.

We were hesitant to document the way it's calculated now because we want to remove this normalization in the future, but it looks like it's better to put a section somewhere that describes it.

[dniku]

Thank you for a prompt comment. I suppose this issue should be closed, as it duplicates #68.