Update README.md

README.md

@@ -82,6 +82,15 @@ Consider also:
  * HOMs (7th order) reaching OMC
  * PIs left after AMDs, PIs introduced due to other changes
  * ?
+
  
 ## Files in this directory
- * 
\ No newline at end of file
+ * 
+ 
+
+## handy links
+ * <a href="https://dcc.ligo.org/LIGO-T1900587">T1900587: Use of aLIGO in process spares as India Optics</a>
+     * older: <a href="https://dcc.ligo.org/LIGO-L1200053">L1200053: Technical Review Board (TRB) Report: Recommendation regarding which Interferometer (H1 or H2) to Offer to LIGO-India</a>
+ * <a href="https://galaxy.ligo.caltech.edu/optics/">Galaxy optics </a>
+
+