README.md in json_pure-2.6.3 vs README.md in json_pure-2.7.0

@@ -10,12 +10,11 @@
 
 * A pure ruby variant, that relies on the iconv and the stringscan
   extensions, which are both part of the ruby standard library.
 * The quite a bit faster native extension variant, which is in parts
   implemented in C or Java and comes with its own unicode conversion
-  functions and a parser generated by the ragel state machine compiler
-  http://www.complang.org/ragel/ .
+  functions and a parser generated by the [Ragel] state machine compiler.
 
 Both variants of the JSON generator generate UTF-8 character sequences by
 default. If an :ascii\_only option with a true value is given, they escape all
 non-ASCII and control characters with \uXXXX escape sequences, and support
 UTF-16 surrogate pairs in order to be able to generate the whole range of
@@ -69,12 +68,11 @@
 ```
 
 ## Compiling the extensions yourself
 
 If you want to create the `parser.c` file from its `parser.rl` file or draw nice
-graphviz images of the state machines, you need ragel from:
-http://www.complang.org/ragel/
+graphviz images of the state machines, you need [Ragel].
 
 ## Usage
 
 To use JSON you can
 
@@ -421,5 +419,7 @@
 * https://rubygems.org/gems/json
 
 Online Documentation should be located at
 
 * https://www.rubydoc.info/gems/json
+
+[Ragel]: http://www.colm.net/open-source/ragel/