update docs with info on 2024.8.1 changes

Author: gilesknap

docs/tutorials/start.rst

@@ -17,6 +17,24 @@ do an initial podman setup::
     See `../how-to/podman`
 
 
+Update for August 2024
+----------------------
+
+- Centos is end of life so we have switched to using the centos rpm package 'vault' instead of mirrors.
+- missing dependencies for building EPICS 7 have been added (libusb 1.0 and libnet)
+- due to dependency clashes we had to remove GUI apps such as firefox
+
+To run the latest dev c7 with libusb 1.0 and NO GUI apps::
+
+    c7 -dv 2024.8.1
+
+
+To run a version with older libusb and original set of GUI apps::
+
+    c7 -dv 2024.8.1gui
+
+
+
 Startup Script "c7"
 -------------------