available components doc: updated kraken DB

Author: cimendes

docs/user/available_components.rst

@@ -108,7 +108,7 @@ Taxonomical Profiling
 ---------------------
 
 - :doc:`components/kraken`: Performs taxonomical identification with kraken
-  (minikrakenDB2014 as default database)
+  (minikrakenDB2017 as default database)
 
 - :doc:`components/midas_species`: Performs taxonomical identification on the
   species level with midas (requires database)
@@ -132,4 +132,4 @@ Typing
   of reference sequences.
 
 - :doc:`components/sistr`: Serovar predictions from whole-genome sequence assemblies
-  by determination of antigen gene and cgMLST gene alleles.
+  by determination of antigen gene and cgMLST gene alleles.