Adds Procfile (#104)

* Adds Procfile
* Update README.md
* Avoids Travis emails

Author: san983

.travis.yml

@@ -13,3 +13,6 @@ script:
 cache:
   directories:
     - $HOME/.cache
+
+notifications:
+  email: false

Procfile

@@ -0,0 +1 @@
+dns: erl -config erldns.config -pa _build/default/lib/**/ebin -s erldns

README.markdown README.md

@@ -31,22 +31,34 @@ You can also write new systems to load zones by writing the zones directly to th
 
 An example configuration file can be found in erldns.config.example.
 
-Copy it to erldns.config and modify as needed.
+Copy it to `erldns.config` and modify as needed.
 
 ## Running
 
-Launch directly:
+### Launch directly:
 
-    rebar3 shell
+```bash
+overmind start
+```
+
+### To get an interactive Erlang REPL:
+
+```bash
+./rebar3 shell
+```
 
-Or build a distribution with `rebar3 release` and run the release:
+### Build a distribution with and run the release:
 
-    ./_build/default/rel/erldns/bin/erldns foreground
+```bash
+./rebar3 release
+./_build/default/rel/erldns/bin/erldns foreground
+```
 
 ## Querying
 
 Here are some queries to try:
 
+```bash
     dig -p8053 @127.0.0.1 example.com a
     dig -p8053 @127.0.0.1 example.com cname
     dig -p8053 @127.0.0.1 example.com ns
@@ -58,6 +70,7 @@ Here are some queries to try:
     dig -p8053 @127.0.0.1 example.com naptr
 
     dig -p8053 @127.0.0.1 -x 127.0.0.1 ptr
+```
 
 ## Performance