removed the _all_metrics category of collections

MetricsEvaluatorCode/Ruby/fairmetrics/app/views/static_pages/about.html.erb

@@ -11,9 +11,7 @@ Metrics</a></p>
 <p align="center"><a href="./metrics">Browse Metrics</a></p>
 <p align="center"><a href="./metrics/new">Register a new Metric</a></p>
 <p align="center"><a href="./collections">Browse Metrics Collections</a> <br/>
-(note
-that, for the review period, the creation/editing of collections has
-been disabled)</p><br/>
+<p align="center"><a href="./collections/new">Browse Metrics Collections</a> <br/>
 <p align="center"><a href="./evaluations">Browse existing evaluations</a></p>
 <p align="center"><a href="./evaluations/new">Execute a new evaluation</a></p>
 <p align="left"><br/>