readme fix

Author: nigelbayliss

optimizer/README.md

@@ -1,7 +1,5 @@
 
-This is a top level repository for code examples related to the Oracle Optimizer, Data Warehousing and Very Large Databases. 
-
-There are examples and scripts relating to the Oracle Database and, in particular, the Oracle Optimizer. 
+This is a top level repository for code examples related to the Oracle Optimizer and, occasionally, Data Warehousing and Very Large Databases. 
 
 The examples are generally self-contained, each wthin a directory containing all the scripts you'll need to complete a particular example. The scripts can be executed using SQL Plus or <a href="http://www.oracle.com/technetwork/developer-tools/sql-developer/downloads/index.html">Oracle SQL Developer.</a>