Update build documentation for Ubuntu. The used FetchContent CMake commands requires cmake 3.11+
@@ -66,6 +66,11 @@ sudo apt-get install -yq --no-install-recommends \
#required if the ENABLE_TESTING option is enabled
sudo apt-get install -yq --no-install-recommends \
libcpputest-dev
+
+#For testing gtest is also used. This is fetched using a cmake 3.11+ feature,
+# which is newer that intalled under Ubuntu 18.
+#Use snap to install the latest cmake version
+snap install --classic cmake
```
For Fedora based systems (dnf), the following command should work:
