doc: readme

Author: pmb

README.md

@@ -2,7 +2,9 @@
 
 Finds all specified files in the current directory and its sub-folders if desired.  
 Then removes duplicated lines, capitalizes them and sort the content.  
-In the *config.properties* file, you can specify the extension looked for (default is "*txt*"), if it's recursive (default is "*true*") and if contents are capitalized (default is "*true*").  
 
 ### How to use it
-Place the *jar* file in where the files to process are and with a command-line interface run `java -jar sort.jar`.
+Place the *jar* file in where the files to process are and with a command-line interface run `java -jar sort.jar`.  
+As input args, you can specify the `extension` looked for (default is "*txt*"), if it's `recursive` (default is "*true*") and if it `capitalize` the contents (default is "*true*").  
+When first use, a `config.properties` will be created holding these. It will be edited when other inputs will be passed.  
+For instance, to disable recursivity and capitalization run: `java -jar sort.jar recursive false capitalize false`