Installing a simple switch onto a C7 power cord

Hey there,

I apolagize if this is the wrong forum section in advance. I have absolutely 0 experience with electronics. I was however hoping to install an inline switch onto a C7 power cord (See picture below)

The reason I want to do this is because I have a cheap chinese movie projector, but the manual states it's better t not have it plugged in at all times. Putting it in and out of the socket requires a bit of a stretch so it's purely for convenience.

I assume all I'll have to do is purchase a wire stripper, I found out that the inside of one of these cords has two smaller cords (Presumably positive and negative) and I should connect those wires to the nodes in the switch.

The switch that I plan on using: Inline Cord Switch AC 250V 6A

Is there anything else I should keep in mind? Please keep in mind that I know nothing about electronics so I might not know any basic concepts.

Thanks!