update doc

generated/.tailcallrc.graphql

@@ -25,16 +25,7 @@ directive @cache(
 ) on FIELD_DEFINITION
 
 """
-For instance, if you have a `user(id: Int!): User @http(path: "/users/{{args.id}}")` 
-field on the `Query` type, you can reference it from another field on the `Query` 
-type using the `@call` operator. So, on `Post.user` you can declare `user: User @call(query: 
-"user", args: {id: "{{value.userId}}"})`, and this will replace the `{{args.id}}` 
-used in the `@http` operator with the value of `userId` from the `Post` type.In case 
-you have a `user(input: UserInput!): User @http(path: "/users")` field on the `Mutation` 
-type, you can reference it from another field on the `Mutation` type. So, on `Post.user` 
-you can declare `user: User @call(mutation: "user", args: {input: "{{value.userInput}}"})`, 
-and this will replace the `{{args.input}}` used in the `@http` operator with the 
-value of `userInput` from the `Post` type.
+Provides the ability to refer to a field defined in the root Query or Mutation.
 """
 directive @call(
   """

generated/.tailcallrc.schema.json

@@ -152,7 +152,7 @@
       }
     },
     "Call": {
-      "description": "For instance, if you have a `user(id: Int!): User @http(path: \"/users/{{args.id}}\")` field on the `Query` type, you can reference it from another field on the `Query` type using the `@call` operator. So, on `Post.user` you can declare `user: User @call(query: \"user\", args: {id: \"{{value.userId}}\"})`, and this will replace the `{{args.id}}` used in the `@http` operator with the value of `userId` from the `Post` type.\n\nIn case you have a `user(input: UserInput!): User @http(path: \"/users\")` field on the `Mutation` type, you can reference it from another field on the `Mutation` type. So, on `Post.user` you can declare `user: User @call(mutation: \"user\", args: {input: \"{{value.userInput}}\"})`, and this will replace the `{{args.input}}` used in the `@http` operator with the value of `userInput` from the `Post` type.",
+      "description": "Provides the ability to refer to a field defined in the root Query or Mutation.",
       "type": "object",
       "properties": {
         "args": {

src/config/config.rs

@@ -590,14 +590,10 @@ pub struct Http {
     pub query: KeyValues,
 }
 
-#[derive(Serialize, Deserialize, Clone, Debug, Default, PartialEq, Eq, schemars::JsonSchema)]
-// The @call operator is used to reference a resolver operator (`@http`, `@grpc`, `@graphQL`) from a field on `Query` type.
 ///
-/// For instance, if you have a `user(id: Int!): User @http(path: "/users/{{args.id}}")` field on the `Query` type, you can reference it from another field on the `Query` type using the `@call` operator.
-/// So, on `Post.user` you can declare `user: User @call(query: "user", args: {id: "{{value.userId}}"})`, and this will replace the `{{args.id}}` used in the `@http` operator with the value of `userId` from the `Post` type.
+/// Provides the ability to refer to a field defined in the root Query or Mutation.
 ///
-/// In case you have a `user(input: UserInput!): User @http(path: "/users")` field on the `Mutation` type, you can reference it from another field on the `Mutation` type.
-/// So, on `Post.user` you can declare `user: User @call(mutation: "user", args: {input: "{{value.userInput}}"})`, and this will replace the `{{args.input}}` used in the `@http` operator with the value of `userInput` from the `Post` type.
+#[derive(Serialize, Deserialize, Clone, Debug, Default, PartialEq, Eq, schemars::JsonSchema)]
 pub struct Call {
     #[serde(default, skip_serializing_if = "is_default")]
     /// The name of the field on the `Query` type that you want to call. For instance `user`.