Update converting_ndc.qmd

attempting to add a table

docs/resources/converting_ndc.qmd

@@ -6,5 +6,12 @@ hide:
 # Converting NDC
 
 Proper mapping of NDC code requires an 11-digit number in a 5-4-2 format. Converting NDC from a 10-digit to an 11-digit format requires a strategically placed zero, dependent upon the 10-digit format. 
-
+
+10-Digit Format|10-Digit Format Example|11-Digit Format|11-Digit Format Example 
+
+-----------------|---------------------|-----------------|-------------------------
+4-4-2|9999-9999-99|5-4-2|09999-9999-99
+5-3-2|99999-999-99|5-4-2|99999-0999-99
+5-4-1|99999-9999-9|5-4-2|99999-9999-09
+
 All dashes need to be removed before matching to the concept.concept_code