note on input/output formats

README.md

@@ -85,7 +85,10 @@ Instructions for how to contribute can be found in [CONTRIBUTING.md](CONTRIBUTIN
 
 ## Fasten script descriptions
 
-|script             |Description|
+All executables read and write in the fastq format
+except `fasten_convert`.
+
+|executable         |Description|
 |-------------------|-----------|
 |[`fasten_clean`](https://lskatz.github.io/fasten/fasten_clean)     | Trims and cleans a fastq file.|
 |[`fasten_convert`](https://lskatz.github.io/fasten/fasten_convert)   | Converts between different sequence formats like fastq, sam, fasta.|

src/lib.rs

@@ -141,11 +141,11 @@ pub fn fasten_base_options_matches(brief:&str, opts:Options) -> Matches{
             .file_stem().unwrap()
             .to_str().unwrap();
         println!("{}: {}\n\n{}", 
-                 &prog_name,
-                 &brief,
-                 &opts.usage(
-                     &opts.short_usage(&prog_name)
-                 ),
+            &prog_name,
+            &brief,
+            &opts.usage(
+                &opts.short_usage(&prog_name)
+            ),
         );
         std::process::exit(0);
     }