add isso.conf example to source distribution

mv sample configuration to share/

MANIFEST.in

@@ -1,6 +1,8 @@
 include man/man1/isso.1
 include man/man5/isso.conf.5
 
+include share/isso.conf
+
 include isso/js/embed.min.js
 include isso/js/embed.dev.js
 include isso/js/count.min.js

Makefile

@@ -8,7 +8,7 @@ ISSO_CSS_SRC_DEPS := $(shell find isso/css -type f | grep .scss)
 RST := $(shell find docs/ -type f -name  '*.rst')
 MAN := man/man1/isso.1 man/man5/isso.conf.5
 
-WWW := docs/index.html docs/isso.example.cfg $(wildcard docs/_static/*)
+WWW := docs/index.html share/isso.conf $(wildcard docs/_static/*)
 CSS := docs/_static/css/site.css
 
 all: man js site

docs/docs/configuration/isso.conf

@@ -0,0 +1 @@
+../../../share/isso.conf

docs/docs/configuration/server.rst

@@ -3,7 +3,7 @@ Server Configuration
 
 The Isso configuration file is an `INI-style`__ textfile. It reads integers,
 booleans, strings and lists. Here's the default isso configuration:
-:download:`isso.example.cfg </isso.example.cfg>`. A basic configuration from
+:download:`isso.conf <isso.conf>`. A basic configuration from
 scratch looks like this:
 
 .. code-block:: ini