Added StegOnline to Steganography Solve section

Author: Ge0rg3

README.md

@@ -271,6 +271,7 @@ Check solve section for steganography.
 - [StegCracker](https://github.com/Paradoxis/StegCracker) - Steganography brute-force utility to uncover hidden data inside files.
 - [stegextract](https://github.com/evyatarmeged/stegextract) - Detect hidden files and text in images.
 - [Steghide](http://steghide.sourceforge.net/) - Hide data in various kind of images.
+- [StegOnline](https://georgeom.net/StegOnline/upload) - Conduct a wide range of image steganography operations, such as concealing/revealing files hidden within bits (open-source).
 - [Stegsolve](http://www.caesum.com/handbook/Stegsolve.jar) - Apply various steganography techniques to images.
 - [Zsteg](https://github.com/zed-0xff/zsteg/) - PNG/BMP analysis.