GNU/Linux Mint Realtek rtl8723DS Generic Driver Setup – Step-by-step Guide
How to Install Realtek rtl8723DS WiFi Generic Linux Driver on Mint GNU/Linux desktops – Step by step Tutorials.
Especially pertinent to consider, as a Simpler Alternative, you should initially attempt with the PPA rtl8723DS Driver Setup.
Please be aware of how this Driver is Not supporting all the Linux Kernels range, so in case of issue consult the available Online Documentation.

Realtek rtl8723DS Driver Source Code Linux Mint Installation Guide