Untrack conf.d

Configs exist in nginx.conf and site.confs.
conf.d contains:
- general.conf 	- gzip
- proxy.conf 	- proxy_buffer, proxy_set_header and proxy_* directives
- security.conf	- add_header directives

.gitignore

@@ -3,6 +3,9 @@
 /certbot/
 /goaccess/
 /data/public/
+/data/conf.d/
 !/data/nginx.conf
-!/data/conf.d/**
-!/goaccess/goaccess.conf
+!/data/sites-available/
+!/data/sites-enabled/
+# !/data/conf.d/** # Configurations exist in nginx.conf and site confs
+!/goaccess/goaccess.conf