Merge pull request opencontainers#424 from anuthan/configlink

Adding link in README.md to Solaris configuration.

README.md

@@ -19,6 +19,7 @@ Table of Contents
 - Configuration
   - [General Configuration](config.md)
   - [Linux-specific Configuration](config-linux.md)
+  - [Solaris-specific Configuration](config-solaris.md)
 - [Glossary](glossary.md)
 
 In the specifications in the above table of contents, the keywords "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" are to be interpreted as described in [RFC 2119](http://tools.ietf.org/html/rfc2119) (Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997).