Resistors/capacitor used in connecting 23LC1024 SRAM 1 Mbit
It's better to use external pull-up resistor at least on CS. It's because MCU pins are configured as INPUTs without pull-ups just after the startup/restart before it gets into the setup().

Also I'd recommend decoupling capacitor as close as possible to the SRAM power supply pins (between Vcc and Gnd). You can google what the decoupling capacitors are (they are also called bypass capacitors).

Edit: First two examples are supposed to be on bread board. So it's not so hard just rewire it, if you have to use for example /HOLD too. However the third example is soldered on prototype board and therfore it's not so easy to rewire it. That's why NU and /HOLD inputs are connected to the Vcc through 10k resistor. If you have to use /HOLD in the future, it's easier to just solder new connection, than rewire hardwired connection to the Vcc.

About decoupling caps - there are even sockets with builtin cap: