correct README

README.md

@@ -231,8 +231,8 @@ cat fasta/hg38_sub.fa | grep "T" | head -n 1
 
 #### Reading
 
-(UCSC FASTA)[http://hgdownload.cse.ucsc.edu/goldenPath/hg38/chromosomes/README.txt]
-(Ensembl FASTA)[http://ftp.sra.ebi.ac.uk/ensemblorg/pub/release-109/fasta/homo_sapiens/dna/README]
+[UCSC FASTA](http://hgdownload.cse.ucsc.edu/goldenPath/hg38/chromosomes/README.txt)
+[Ensembl FASTA](http://ftp.sra.ebi.ac.uk/ensemblorg/pub/release-109/fasta/homo_sapiens/dna/README)
 
 <p>&nbsp;</p>
 
@@ -378,7 +378,7 @@ samtools view bam/22L007826.endtoend.bam | cut -f 9 | head -n 20
 
 
 #### Readings
-- [SAM wikipedia](https://en.wikipedia.org/wiki/SAM_(file_format)))
+- [SAM wikipedia](https://en.wikipedia.org/wiki/SAM_(file_format))
 - [SAM flags](https://broadinstitute.github.io/picard/explain-flags.html)
 - [Samtools view](http://www.htslib.org/doc/samtools-view.html)