Add summary

Wat Numeric Values

Author: echamudi

proposals/wat-numeric-values/Overview.md

@@ -2,7 +2,30 @@
 
 ## Summary
 
-TODO
+* Currently, the data segments can only be written in strings.
+
+    ```wat
+    (data (offset (i32.const 0)) "1234")               ;; 3132 3334
+    ```
+    ```wat
+    (data (offset (i32.const 0)) "\09\ab\cd\ef")       ;; 09ab cdef
+    ```
+
+* This proposal proposes an alternative writing format in numeric values.
+
+    ```wat
+    (data (offset (i32.const 0))
+        (f32 0.2 0.3 0.4)          ;; cdcc 4c3e 9a99 993e cdcc cc3e
+    )
+    ```
+    ```wat
+    (memory $1
+        (data 
+            (i8 1 2)               ;; 0102
+            (i16 3 4)              ;; 0300 0400
+        )
+    )
+    ```
 
 ## Motivation