Update README
fix rest syntax
@@ -177,12 +177,13 @@ Environment Variables
It is users task to set some environment variables to fit your platform such as
-```
+
+.. code-block:: bash
+
export PATH=/path/to/qt/x.x.x/clang_64/bin/:$PATH
export QT_PLUGIN_PATH=/path/to/qt/x.x.x/clang_64/plugins/
export QML_IMPORT_PATH=/path/to/qt/x.x.x/clang_64/qml/
export QML2_IMPORT_PATH=/path/to/qt/x.x.x/clang_64/qml/
-```
aqtinstall never do it for you because not to break multiple installation versions.
