Created Request Matching GraphQLMatcher (markdown)

Request-Matching-GraphQLMatcher.md

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+## GraphQL Schema (GraphQLMatcher)
+Can be used to match a GraphQL Query or Mutation using GraphQAL Schema.
+
+#### C# option
+```csharp
+var TestSchema = @"
+  input MessageInput {
+    content: String
+    author: String
+  }
+
+  type Message {
+    id: ID!
+    content: String
+    author: String
+  }
+
+  type Mutation {
+    createMessage(input: MessageInput): Message
+    updateMessage(id: ID!, input: MessageInput): Message
+  }
+
+  type Query {
+   greeting:String
+   students:[Student]
+   studentById(id:ID!):Student
+  }
+
+  type Student {
+   id:ID!
+   firstName:String
+   lastName:String
+   fullName:String 
+  }";
+
+var server = WireMockServer.Start();
+server
+    .Given(Request.Create()
+        .WithPath("/graphql")
+        .UsingPost()
+        .WithGraphQLSchema(TestSchema)
+    )
+    .RespondWith(Response.Create()
+        .WithBody("GraphQL is ok")
+    );
+```
+
+#### JSON Mapping option
+``` json
+{
+  "Guid": "5a36d1c1-11df-4976-90f9-22cae5dadb38",
+  "UpdatedAt": "2023-07-08T17:02:06.1072879Z",
+  "Request": {
+      "Path": {
+          "Matchers": [
+              {
+                  "Name": "WildcardMatcher",
+                  "Pattern": "/graphql",
+                  "IgnoreCase": false
+              }
+          ]
+      },
+      "Methods": [
+          "POST"
+      ],
+      "Body": {
+          "Matcher": {
+              "Name": "GraphQLMatcher",
+              "Pattern": "\r\n  input MessageInput {\r\n    content: String\r\n    author: String\r\n  }\r\n\r\n  type Message {\r\n    id: ID!\r\n    content: String\r\n    author: String\r\n  }\r\n\r\n  type Mutation {\r\n    createMessage(input: MessageInput): Message\r\n    updateMessage(id: ID!, input: MessageInput): Message\r\n  }\r\n\r\n  type Query {\r\n   greeting:String\r\n   students:[Student]\r\n   studentById(id:ID!):Student\r\n  }\r\n\r\n  type Student {\r\n   id:ID!\r\n   firstName:String\r\n   lastName:String\r\n   fullName:String \r\n  }"
+          }
+      }
+  }
+}
+```