updated docs - added information about which fields are mandatory

dotnet · Nov 9, 2022 · 70629dc · 70629dc
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diff --git a/docs/Available-Symbols-Generators.md b/docs/Available-Symbols-Generators.md
@@ -106,6 +106,9 @@ In this sample three symbols are defined:
 Behaves like the C# `??` operator. Note: the empty string value is treated as `null`. 
 The typical use of this generator is to check if the parameter was provided by user, otherwise set fallback generated value.
 
+Note: as in C# `??` operator, empty string will be accepted as the valid value and returned. 
+The typical use of this generator is to check if the parameter was provided by user, otherwise set fallback generated value.
+
 #### Parameters
 
 |Name|Data Type|Description|Mandatory|