Link more prominently to the correct spec

Author: tschaub

geojson-spec.md

@@ -1,6 +1,6 @@
 ---
 layout:  nav
-title:   GeoJSON Specification
+title:   Obsolete
 ---
 <!-- NAV -->
 <nav id="nav">
@@ -37,8 +37,8 @@ title:   GeoJSON Specification
 * [Appendix B\. Contributors](#appendix-b-contributors)
 </nav>
 
-# The GeoJSON Format Specification
-  
+# This document is obsolete.  Please see [RFC 7946](https://tools.ietf.org/html/rfc7946) instead.
+
 <!-- Document Info -->
 <table class="docinfo">
   <tr>

index.md

@@ -25,11 +25,11 @@ GeoJSON supports the following geometry types: `Point`, `LineString`,
 objects with additional properties are `Feature` objects. Sets of features are
 contained by `FeatureCollection` objects.
 
-## RFC 7946
+## [The GeoJSON Specification (RFC 7946)](https://tools.ietf.org/html/rfc7946)
 
 In 2015, the Internet Engineering Task Force (IETF), in conjunction with the
 original specification authors, formed a [GeoJSON
 WG](https://datatracker.ietf.org/wg/geojson/charter/) to standardize GeoJSON.
 [RFC 7946](https://tools.ietf.org/html/rfc7946) was published in August 2016
 and is the new standard specification of the GeoJSON format, replacing the
-[2008 GeoJSON specification](geojson-spec.html).
+2008 GeoJSON specification.

robots.txt

@@ -0,0 +1,3 @@
+User-agent: *
+
+Disallow: /geojson-spec.html