fix formatting, add info about black

.githooks/pre-commit

@@ -0,0 +1,3 @@
+#!/bin/bash
+echo "Formatting all python files with Black"
+black .

README.md

@@ -1 +1,6 @@
 # Nginx configurator (patent for that name is pending...)
+
+
+
+# Contributions
+Please use `black` formatter. 

n-gen.py

@@ -1,17 +1,18 @@
 import json
 import pyinputplus as pyip
+from jinja2 import Environment, PackageLoader, select_autoescape
 
 # Get clusters from json config
 with open("clusters.json") as json_file:
     CLUSTERS = json.load(json_file)["clusters"]
 
 # Setup Jinja2
-from jinja2 import Environment, PackageLoader, select_autoescape
 jin = Environment(loader=PackageLoader("n-gen"), autoescape=select_autoescape())
 
-# ID of next config - TBD
+# ID of next config - TBD - read this from list of configs and increment!
 CONF_ID = 1
 
+
 def get_domains():
     new_domain = True
     domains = []