info on datasets and example database

Author: Robin Kobus

data/README.md

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+Datasets
+-----
+The datasets HiSeq and MiSeq are included in Kraken's "Timing data" at:
+http://ccb.jhu.edu/software/kraken/
+
+The datasets wgsim200 and wgsim250 can be downloaded at:
+https://seafile.rlp.net/f/ab4ac98d55/
+
+
+Example light database
+-----
+An example light database containing bacterial species-level targets can be downloaded at:
+https://seafile.rlp.net/f/f2c9aa6fd6/
+
+If CuCLARK was installed and the database extracted to `<directoryDB>` the classification can be executed with:
+```
+./CuCLARK-l -T <directoryDB/targets_0.txt> -D <directoryDB/> -O <fileObjects> -R <fileResults> -n <numberofthreads>
+```