Added test data

git clone https://github.com/haowenz/chromap.git

cd chromap && make

# create an index first and then map

./chromap -i -r test/ref.fa -o ref.index

./chromap -x ref.index -r test/ref.fa -1 test/read1.fq.gz -o test.bed

./chromap -i -r test/ref.fa.gz -o ref.index

./chromap -x ref.index -r test/ref.fa.gz -1 test/read1.fq.gz -o test.bed

# use presets (no test data)

./chromap --preset atac -x index -r ref.fa -1 read1.fq.gz -2 read2.fq.gz -o aln.bed       # ATAC-seq reads

./chromap --preset atac -x index -r ref.fa -1 read1.fq.gz -2 read2.fq.gz -o aln.bed \