README.md in powerpack-0.0.3 vs README.md in powerpack-0.0.4

- old
+ new
@@ -21,9 +21,12 @@
 
 ## Extensions
 
 * [Hash](http://rdoc.info/github/bbatsov/powerpack/Hash)
     * [#symbolize_keys](http://rdoc.info/github/bbatsov/powerpack/Hash#symbolize_keys-instance_method)
+* [Numeric](http://rdoc.info/github/bbatsov/powerpack/Numeric)
+    * [#pos?](http://rdoc.info/github/bbatsov/powerpack/Numeric#pos?-instance_method)
+    * [#neg?](http://rdoc.info/github/bbatsov/powerpack/Numeric#neg?-instance_method)
 * [String](http://rdoc.info/github/bbatsov/powerpack/String)
     * [#blank?](http://rdoc.info/github/bbatsov/powerpack/String#blank?-instance_method)
     * [#format](http://rdoc.info/github/bbatsov/powerpack/String#format-instance_method)
     * [#strip_indent](http://rdoc.info/github/bbatsov/powerpack/String#strip_indent-instance_method)
     * [#strip_margin](http://rdoc.info/github/bbatsov/powerpack/String#strip_margin-instance_method)