Add new screenshot and list features in Readme

Author: SilverGreen93

README.md

@@ -2,6 +2,14 @@
 
 ![screenshot](screenshot.png?raw=true)
 
+## Features
+- Convert BASIC programs to WAV or MP3 for loading on real hardware or recording on tape.
+- Use a custom Sharp program filename for the audio file.
+- Convert WAV or MP3 recordings to BASIC programs to easily edit on the computer.
+- Renumber BASIC lines to make room for more lines or space the instructions evenly. This will also change GOTO, GOSUB or THEN keywords to match the new line numbers.
+
+## Description
+
 This application helps with converting Sharp / TRS-80 Pocket PC BASIC programs from BAS source file to WAV or MP3 or viceversa.
 
 The application is a Graphical User Interface for the PocketTools original command line tools found on http://pocket.free.fr/html/soft/soft_e.html or https://www.peil-partner.de/ifhe.de/sharp/
@@ -20,5 +28,9 @@ Drag and drop the BAS source file to convert to audio file to be loaded on Sharp
 
 You can set conversion options directly in the main window.
 
+To renumber lines in a BASIC file, choose the right option and drag & drop the file. If the Rename option is choosen, a new file will be created with the new line numbering. If the overwrite option is choosen, the original file will be overwritten.
+
+If there are any issues in the conversion or renumbering process, the log will state the exact issue. For example, if there are GOTO statements that do not jump to a constant line number, you will be prompted to double check and adjust the result manually.
+
 ## Resources
 You can find sample ready made programs for Sharp 1211 here: https://github.com/Robert-van-Engelen/119-Practical-Programs-for-the-TRS-80-Pocket-Computer