add some documents

Author: y9c

README.md

@@ -1,13 +1,23 @@
 # hey
 
-## sam2pairwise (s2p)
-
-![](./docs/preview_sam2pairwise.png)
-
 ## open
 
 ![](./docs/preview_open.png)
 
+
+## tsv
+
+![](./docs/preview_tsv.png)
+
+## colname
+
+![](./docs/preview_colname.png)
+
 ## fastq
 
 ![](./docs/preview_fastq.png)
+
+## sam2pairwise (s2p)
+
+![](./docs/preview_sam2pairwise.png)
+