Add note about deviating from IEEE 754

spec.emu

@@ -150,7 +150,10 @@ location: https://github.com/tc39/proposal-decimal/
     </emu-clause>
     <emu-clause id="sec-decimal.prototype.remainder">
       <h1>Decimal128.prototype.remainder ( _x_ )</h1>
-      <p>Computes the remainder of dividing <emu-xref href="#dfn-map-to-ieee-754-decimal128">B</emu-xref> of *this_ value by <emu-xref href="#dfn-map-to-ieee-754-decimal128">B</emu-xref> of *_x_* according to the rules of the IEEE 754 Decimal128 specification and returns <emu-xref href="#dfn-map-from-ieee-754-decimal128">A</emu-xref> of the resulting Decimal128 value. The sign of the result is the sign of *this* value. Returns a fresh result.</p>
+      <p>Computes the remainder of dividing *this_ value by *_x_*. Exact division of *this* by *_x_* is carried out until the computation stops; the residue of that computation is returned.  The sign of the result is the sign of *this* value. Returns a fresh result.</p>
+      <emu-note>
+	<p>The remainder operation specified here deviates from the IEEE 754 remainder operation.</p>
+      </emu-note>
     </emu-clause>
     <emu-clause id="sec-decimal.prototype.equals">
       <h1>Decimal128.prototype.equals ( _x_ )</h1>