Charged anisotropic compact star in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e3479" altimg="si15.svg"> <mml:mrow> <mml:mi>f</mml:mi> <mml:mrow> <mml:mo>(</mml:mo> <mml:mi>R</mml:mi> <mml:mo>,</mml:mo> <mml:mi mathvariant="script">T</mml:mi> <mml:mo>)</mml:mo> </mml:mrow> </mml:mrow> </mml:math> gravity: A minimal geometric deformation gravitational decoupling approach