Update README.md

Add a prerequisites section for Nvidia and AMD

README.md

@@ -20,12 +20,33 @@ Matrix room: #tuxclocker:matrix.org [Direct Riot link](https://riot.im/app/#/roo
 - Provisional multi-GPU support
 - Profiles
 
+# Prerequisites
+
+For AMD under Ubuntu:
+
+    sudo apt install --yes --quiet --quiet \
+    	libqt5x11extras5-dev \
+	qtbase5-dev \
+	libqt5x11extras5 \
+	libdrm-amdgpu1 \
+	libdrm-common \
+	libdrm-dev
+
+For Nvidia under Ubuntu:
+
+    sudo apt install --yes --quiet --quiet \
+    	libqt5x11extras5-dev \
+	qtbase5-dev \
+	libqt5x11extras5 \
+	libdrm-amdgpu1 \
+	libdrm-common \
+	libdrm-dev \
+	nvidia-utils-440-server \
+	nvidia-settings \
+	libxnvctrl-dev
+
 # Requirements (nvidia)
-- NOTE: headers are usually included in a package named \*-dev, if they are separate
-- nvidia-smi
-- nvidia-settings
-- libxnvctrl and headers (if not included in nvidia-settings)
-- qt5base, x11extras and their headers
+
 - [Coolbits](https://wiki.archlinux.org/index.php/NVIDIA/Tips_and_tricks#Enabling_overclocking) set to the value you want (31 for all functionality)
 
 # Installation (nvidia)
@@ -49,7 +70,6 @@ make install (installs into /opt/tuxclocker/bin)
 
 - NOTE: headers are usually included in a package named \*-dev, if they are separate
 - libdrm and headers
-- libqt5x11extras5
 - amdgpu.ppfeaturemask boot paramter set to the value you want. To view the current value, run 
 
 ```