docs: Add root directory to PATH for docs build

Signed-off-by: Stephen Finucane <stephen@that.guru>

Author: stephenfin

docs/conf.py

@@ -5,6 +5,7 @@
 import os
 import sys
 
+sys.path.insert(0, os.path.abspath('..'))
 sys.path.insert(0, os.path.abspath('../examples'))
 
 # -- General configuration ------------------------------------------------