Add change log.

Author: xpol

README.md

@@ -312,6 +312,7 @@ The current loaded rapidjson version. `"scm"` when not build with luarocks.
 
 ### 0.4.0
 
+* Checks circular reference when encoding tables.
 * A table is encoded as json array if:
   - have meta field `__jsontype` set to `'array'`.
   - don't have meta filed `__jsontype` and length > 0.

spec/json_encode_spec.lua

@@ -65,7 +65,7 @@ describe('rapidjson.encode()', function()
     )
   end)
 
-  it('should detect avoid circular reference', function()
+  it('should detect circular reference', function()
     local a = {}
     a.b = a
     assert.has_error(function()