Fix fragment typo

Author: MaggieKimani1

src/Microsoft.OpenApi/Models/OpenApiReference.cs

@@ -62,7 +62,7 @@ public class OpenApiReference : IOpenApiSerializable
         /// <summary>
         /// Gets a flag indicating whether a file is a valid OpenAPI document or a fragment
         /// </summary>
-        public bool IsFragrament = false;
+        public bool IsFragment = false;
 
         /// <summary>
         /// The OpenApiDocument that is hosting the OpenApiReference instance. This is used to enable dereferencing the reference.
@@ -231,7 +231,7 @@ private string GetExternalReferenceV3()
         {
             if (Id != null)
             {
-                if (IsFragrament)
+                if (IsFragment)
                 {
                     return ExternalResource + "#" + Id;
                 }

src/Microsoft.OpenApi/Reader/V3/OpenApiV3VersionService.cs

@@ -153,7 +153,7 @@ public OpenApiReference ConvertToOpenApiReference(
                     }
                     else
                     {
-                        openApiReference.IsFragrament = true;
+                        openApiReference.IsFragment = true;
                     }
 
                     openApiReference.ExternalResource = segments[0];

test/Microsoft.OpenApi.Tests/PublicApi/PublicApi.approved.txt

@@ -887,7 +887,7 @@ namespace Microsoft.OpenApi.Models
     }
     public class OpenApiReference : Microsoft.OpenApi.Interfaces.IOpenApiElement, Microsoft.OpenApi.Interfaces.IOpenApiSerializable
     {
-        public bool IsFragrament;
+        public bool IsFragment;
         public OpenApiReference() { }
         public OpenApiReference(Microsoft.OpenApi.Models.OpenApiReference reference) { }
         public string Description { get; set; }