Update README.md

fixed the section/chapter notation

README.md

@@ -4,7 +4,7 @@ Plugin for managing settings needed for SBT publish.
 It can be very cumbersome to configure a _build.sbt_ file properly if one wishes to publish the artifact to some repository (e.g. Nexus, Artifactory).  
 This plugin provides help for that configuration.
 
-###Credentials
+### Credentials
 In order to be able to publish to any repository it generally requires you to provide credentials to that repository.  
 Traditionally sbt uses the _~/.ivy2/.credentials_ file for that.  
 It however requires some manual setup in the build.sbt file.  
@@ -37,7 +37,7 @@ import org.dmonix.sbt.CredentialsSettings._
 credentials ++= publishCredentials
 ```
 
-###Publish to Maven central
+### Publish to Maven central
 If you're like me and publish artifacts to [Maven Central](https://oss.sonatype.org) then you might want to use the _MavenCentralSettings_ utility to automatically configure the URLs where to publish your binaries.  
 Adding this to your _build.sbt_ file will automatically configure the publish path.  
 In fact it takes into account if it's a _-snapshot_ or fixed version release. you want to publish.  
@@ -50,10 +50,10 @@ publishTo <<= version {publishURL(_)}
 ```
 Refer to the above _.credentials_ file for an example on how the credentials for Maven Central realm are configured.
 
-###Live Example
+### Live Example
 Check out the [build.sbt](../master/build.sbt) for this project to see the usage of the plugin.
 
-###Installing the plugin
+### Installing the plugin
 Simply add this to the _plugins.sbt_ file:
 ```scala
 addSbtPlugin("org.dmonix.sbt" % "sbt-publish-settings-plugin" % "0.5")