Merge ae8f520

Author: Sven Van Caekenberghe

README.md

@@ -1,5 +1,7 @@
 # NeoUniversalBinaryJSON
-An implementation of Universal Binary JSON (UBJSON) for Pharo
+An implementation of Universal Binary JSON (UBJSON) for Pharo.
+
+Universal Binary JSON (UBJSON) is a computer data interchange format. It is a binary form directly imitating JSON, but requiring fewer bytes of data. It aims to achieve the generality of JSON, combined with being easier and more efficient to process than JSON. The size/speed/efficiency differences are minor though, especially compared with compacted JSON. The implementation is simpler, though.
 
 See also
 
@@ -11,13 +13,17 @@ See also
 This is a [Pharo Smalltalk](http://wwww.pharo.st) project 
 using the [Tonel](https://github.com/pharo-vcs/tonel) source code format.
 
-In Pharo 7 and up you can use Iceberg to load this project.
+In Pharo 8 you can use Iceberg to load this project.
 
 You can also load using the following expression:
 
     Metacello new
       baseline: 'NeoUniversalBinaryJSON';
       repository: 'github://svenvc/NeoUniversalBinaryJSON';
       load.
-   
+ 
+### Note about Pharo 7 Compatibility
+
+For Pharo 7, you need to change the method NeoUBJSONWriter>>#writeInteger:ofSize:signed:bigEndian: so that it sends #digitAt: instead of #byteAt: 
+
 Written and supported by Sven Van Caekenberghe. MIT Licensed.