Make it clearer what adapters are in the default queries

[mmokrejs]

The default queries are TruSeq adapters which is a good default these days
with HiSeq/NextSeq datasets.

Explain what is the first pair of adapter pairs in the table. It is not clear
what is on the other rows.

[coveralls]

Coverage remained the same at 74.136% when pulling 687ead8 on mmokrejs:clarify_adapter_queries into 04d254b on MikkelSchubert:master.

[coveralls]

Coverage remained the same at 74.136% when pulling b94ff4e on mmokrejs:clarify_adapter_queries into 04d254b on MikkelSchubert:master.

[MikkelSchubert]

Thank you very much!
I am currently in the process of rewriting and re-organizing the documentation and manpage, as time permits, and I'll make sure to incorporate your suggestions. With regards to the table of adapters, there is a good chance that I just generated some random sequences for demonstration purposes, but I'll have to check.

Cheers