clarifications

README

@@ -1,16 +1,17 @@
 Files
 -----
 
-finediff.php    : where the FineDiff class is defined
+finediff.php    : where the FineDiff class is defined, standalone, no dependencies
 
 viewdiff-ex.php : demo page, render diff in HTML, show opcodes and other stats
 sample_from.txt : sample text file for demo
 sample_to.txt   : sample text file for demo
-[Text_Diff]     : required, available at http://download.pear.php.net/package/Text_Diff-1.1.1.tgz
+[Text_Diff]     : required for viewdiff-ex.php demo page,
+                  available at http://download.pear.php.net/package/Text_Diff-1.1.1.tgz
 
 viewdiff.php    : demo page, plainly render diff in HTML
 
-Demo available online at:
+Demo can be seen online at:
 http://www.raymondhill.net/finediff/