Update README.md

Author: demasy

Oracle-SQL-and-PL-SQL-Coding-Guidelines /README.md

@@ -69,6 +69,7 @@ This is the standard of oracle database objects
  | 12.3      | Objects                   |        | o_     | _type  | o_customer_type |  
 
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+
 Notes: **pos** is abbreviation or short for **P**oint **O**f **S**ale, and we will use it as module abbreviation for example.
 
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