#1 Update README.md with all config options

Author: kobylynskyi

README.md

@@ -10,6 +10,21 @@ Please refer to:
 * Maven plugin: [grapqhl-java-codegen-maven-plugin](https://github.com/kobylynskyi/grapqhl-java-codegen-maven-plugin) 
 
 
+
+## Supported Options
+
+| Key                     | Data Type          | Default value | Description |
+| ----------------------- | ------------------ | ------------- | ----------- |
+| graphqlSchemaPaths      | List(String)       | None          | GraphQL schema locations. You can supply multiple paths to GraphQL schemas. |
+| packageName             | String             | Empty         | Java package for generated classes. |
+| outputDir               | String             | None          | The output target directory into which code will be generated. |
+| customTypesMapping      | Map(String,String) | Empty         | Can be used to supply custom mappings for scalars. <br/> Supports:<br/> * Map of (GraphqlObjectName.fieldName) to (JavaType) <br/> * Map of (GraphqlType) to (JavaType) |
+| modelNamePrefix         | String             | Empty         | Sets the prefix for GraphQL model classes (type, input, interface, enum, union). |
+| modelNameSuffix         | String             | Empty         | Sets the suffix for GraphQL model classes (type, input, interface, enum, union). |
+| apiPackage              | String             | Empty         | Java package for generated api classes (Query, Mutation, Subscription). |
+| modelPackage            | String             | Empty         | Java package for generated model classes (type, input, interface, enum, union). |
+
+
 ### Inspired by
 [swagger-codegen](https://github.com/swagger-api/swagger-codegen)
 

src/main/java/com/kobylynskyi/graphql/codegen/model/MappingConfig.java

@@ -11,7 +11,7 @@ public class MappingConfig {
     /**
      * Scalars mapping can be defined here.
      * e.g.: DateTime -> String
-     * e.g.: Price.Float -> java.math.BigDecimal
+     * e.g.: Price.amount -> java.math.BigDecimal
      */
     private Map<String, String> customTypesMapping = new HashMap<>();
     private String packageName;