Updating examples of r2frida commands

[ZabGo]

In the examples showing how to run r2frida commands, The MASTG is using the old way to start r2frida commands, \ instead of :.

We should update the guide so that the examples are showing how to run the commands the new way by starting them with :.
old way: \iE
new way: :iE

[cpholguera]

That'd be awesome @ZabGo! I've created a ticket for that: #2448
Would you like me to assign it to you?

[ZabGo]

It seems that I was not fast enough to reply haha. I'm glad it's fixed now :-)

[cpholguera]

Thank you @ZabGo!