Update README.md

CHT/README.md

@@ -166,7 +166,7 @@ For example, if the goal is to identify histone-mark QTLs, the target
 regions should be ChIP-seq peaks, and the test SNPs should be SNPs
 that are near-to or within the ChIP-seq peaks.
 
-Note (added 4/25/2016): the target regions for a single test regions should be 
+*Note (added 4/25/2016):* the target regions for a single test regions should be 
 non-overlapping. Overlapping target regions can cause some reads
 to be counted multiple times in a single test and inflate the test
 statistic. We plan to add a check for this to the extract haplotype