Change knownGene in tutorial to refGene

[akotlar]

In the Readme tutorial:

GenPro_download_ucsc_data.pl -d hg38 -g hg38

for ((i=1;i<27;i++)); do
  GenPro_create_db.pl -g hg38 -c $i \
    --genedir hg38/gene             \
    --geneset knownGene             \
    -f hg38/chr -o hg38/idx;
done;

In GenPro_download_ucsc_data.pl line 101 - 103:

# gene data, per genome sql dump
#my $gene_set = "knownGene";
my $gene_set = "refGene";

This causes GenPro_create_db.pl to fail if run as shown in the readme.