Update file 03designprocess.md

docs/development/03designprocess.md

@@ -6,10 +6,12 @@
 
 The research is focused on the funeral traditons in **Europe** and **the U.S**.
 
-### **FROM 16TH CENTURY TO EARLY 20TH CENTURY**
+### **FROM 14TH CENTURY TO LATE 17TH CENTURY**
 
 #### **WINDING SHEET**
 
+### **FROM LATE 17 CENTURY TO EARLY 2OTH CENTURY**
+
 #### **SHROUDS**
 
 ### **EARLY 20TH CENTURY**