Update README.md

Author: retug

README.md

@@ -1,5 +1,6 @@
 # ETABs
 Scripts Relating to Accessing ETABs API
 
-* https://re-tug.com/post/diaphragm-slicer-etabs-api/8
-* https://re-tug.com/post/etabs-api-more-examples-database-tables/18
+* 01 - https://re-tug.com/post/diaphragm-slicer-etabs-api/8
+* 02 - https://re-tug.com/post/etabs-api-more-examples-database-tables/18
+* 03 - https://www.re-tug.com/post/the-beginnings-of-an-etabs-plugin/21