Adding links to meta-schemas of previous drafts

documentation.md

@@ -28,4 +28,14 @@ The latest meta-schema is draft-06.
 | [Core/Validation meta-schema](http://json-schema.org/schema) | Used for schemas written for pure validation.              |
 | [Hyper meta-schema](http://json-schema.org/hyper-schema)     | Used for schemas written for validation and hyper-linking. |
 
-**If you are accessing the above meta-schema links from a web browser, you will need to save the file then open it as a JSON file.**
+**If you are accessing the above meta-schema links from a web browser, you will need to save the file then open it as a JSON file.**
+
+Meta-schemas of previous drafts
+-------------------------------
+
+ * [Draft 04 core and validation schema](http://json-schema.org/draft-04/schema)
+ * [Draft 04 hyper-schema](http://json-schema.org/draft-04/hyper-schema)
+
+
+ * [Draft 03 core and validation schema](http://json-schema.org/draft-03/schema)
+ * [Draft 03 hyper-schema](http://json-schema.org/draft-03/hyper-schema)

implementations.md

@@ -65,7 +65,7 @@ Validators
     -   [hjsonschema](https://github.com/seagreen/hjsonschema) - *supports draft 4* (MIT)
 - Java <a id="validator-java"></a>
     -   [json-schema-validator](https://github.com/java-json-tools/json-schema-validator) - *supports draft 4* (LGPLv3)
-    -   [json-schema (implementation based on the org.json API)](https://github.com/everit-org/json-schema) - *supports draft 4* (Apache License 2.0)
+    -   [json-schema (implementation based on the org.json API)](https://github.com/everit-org/json-schema) - *supports draft 4, draft 6* (Apache License 2.0)
     -   [json-schema-validator](https://github.com/networknt/json-schema-validator) - *supports draft 4* (Apache License 2.0)
 - JavaScript <a id="validator-javascript"></a>
     -   [ajv](https://github.com/epoberezkin/ajv) for Node.js and browsers - *supports draft 4, draft 6, [custom keywords](https://github.com/epoberezkin/ajv-keywords) and [$data reference](https://github.com/json-schema-org/json-schema-spec/issues/51)* (MIT)