Fix documentation project name

When copy pasting from python-sdbus the project name was not
updated to "python-lxns".

Author: igo95862

docs/conf.py

@@ -5,7 +5,7 @@
 from os.path import abspath
 from sys import path
 
-project = "python-sdbus"
+project = "python-lxns"
 author = "igo95862"
 source_suffix = ".rst"
 extensions = ["sphinx.ext.autodoc"]