README.md

@@ -2,7 +2,8 @@
 
 Identifies duplicate reads. This tool locates and tags duplicate reads in a coordinate ordered SAM or BAM file.
 
-Use the same algorithm as picard MarkDuplicates and output identical results, and use spdlog as log tool and the default level is 'info'.
+Use the same algorithm as picard MarkDuplicates and output identical results.
+Use spdlog as log tool and the default level is 'info'.
 
 ### Features
 
@@ -29,13 +30,20 @@ Use the same algorithm as picard MarkDuplicates and output identical results, an
 
 ## Requirements
 
-Install following tools and required libraries.
+### Build tools
 
-```bash
+* autoconf (for htslib)
-# install autoconf (for htslib), cmake, c++17 (gcc >= 8.1 or clang >= 7 should work), zlib, libbz2, liblzma, libcurl, libdeflate (optional)
+* cmake
-sudo apt update
+* c++17 (gcc >= 8.1 or clang >= 7 should work.)
-sudo apt install autoconf cmake g++-8 zlib1g-dev libbz2-dev liblzma-dev libcurl4-openssl-dev libdeflate-dev gcc-8 g++-8 
+
-```
+### Libraries needed
+
+* zlib
+* libbz2
+* liblzma
+* libcurl
+* OpenSSL
+* libdeflate (optional)
 
 ## Install
 
@@ -59,13 +67,13 @@ The generated binary fastdup will be in the build/bin folder.
 
 ## Usage
 
-Get help
+1. get help
 
 ```bash
 ./fastdup --help
 ```
 
-Mark duplicates on an input BAM file using 8 threads
+2. mark duplicates on an input BAM file using 8 threads
 
 ```bash
 ./fastdup --input in_test.bam --output out_md.bam --metrics stats.txt --num-threads 8