[DLRN] Proofread documentation

[javierpena]

The DLRN documentation at https://github.com/softwarefactory-project/DLRN/tree/master/doc/source has been mostly created by non-native English speakers. It would be great if we could get a native speaker to proofread it, and correct any mistakes.

[apevec]

@javierpena link to how to submit fixes?
https://github.com/softwarefactory-project/DLRN/blob/master/CONTRIBUTING.rst#submitting-pull-requests
ends with unfinished "The usual workflow is:"

[javierpena]

That looks like a GitHub rendering issue, the instructions are there in https://raw.githubusercontent.com/softwarefactory-project/DLRN/master/CONTRIBUTING.rst.

I'll check that out.