Updated BiTIA icon

docs/source/index.md

 <div style=" height:200px; width:200px; float: left; margin-right: 30px;">
 
-```{image} https://gitlab.subcom.tech/bitia/bitia-cli/-/raw/5-enable-docs/docs/source/img/BiTIA_New_Age.jpg
+```{image} img/BiTIA_V4.png
 :target: https://bitia.gitlab.subcom.tech/bitia-cli/
 ```