Address add-gramforce PR comments

Author: MH-ZShearer

Common/UnitDefinitions/Force.json

@@ -34,8 +34,10 @@
     {
       "SingularName": "GramForce",
       "PluralName": "GramsForce",
-      "FromUnitToBaseFunc": "({x} * 9.80665) / 1e3",
-      "FromBaseToUnitFunc": "({x} / 9.80665) * 1e3",
+      "FromUnitToBaseFunc": "{x} * 9.80665e-3",
+      "FromBaseToUnitFunc": "{x} / 9.80665e-3",
+      "XmlDocSummary": "The gram-force is a unit of force equal to the magnitude of force exerted by a gram of mass in standard gravity (9.80665 m/s²). It is equal to 9.80665 × 10⁻³ N.",
+      "XmlDocRemarks": "https://en.wikipedia.org/wiki/Kilogram-force",
       "Localization": [
         {
           "Culture": "en-US",

UnitsNet.NanoFramework/GeneratedCode/Quantities/Force.g.cs

@@ -111,5 +111,12 @@ public void KilogramForceDividedByNewtonEqualsStandardGravity()
             var duration = Force.FromKilogramsForce(1) / Force.FromNewtons(1);
             Assert.Equal(9.80665, duration);
         }
+
+        [Fact]
+        public void ThousandGramsForceEqualsOneKilogramForce()
+        {
+            var force = Force.FromGramsForce(1000);
+            Assert.Equal(Force.FromKilogramsForce(1), force.ToUnit(ForceUnit.KilogramForce));
+        }
     }
 }