Update requirements.rst

added additional dependency requirement: VC++ redist

docs/source/requirements.rst

@@ -26,3 +26,4 @@ In order to run iDaVIE-v the following software needs to be installed:
 
 #. Windows 10 (version 1903 or newer) is required.
 #. The SteamVR runtime is required. Note that in order to start SteamVR, some headsets (e.g. Oculus Rift) require additional software to be installed. Instruction should be provided on the headsets webpage.
+#. The latest 64-bit (X64) `Visual C++ redistributable <https://aka.ms/vs/17/release/vc_redist.x64.exe>`_ needs to be installed.