Updated README

- updated README to match the current API

Signed-off-by: JBBianchi <jb.bianchi@neuroglia.io>

Author: JBBianchi

README.md

@@ -7,8 +7,8 @@ Provides the Typescript API/SPI for the [Serverless Workflow Specification](http
 
 With the SDK you can:
 * Parse workflow JSON and YAML definitions
-* (_WIP_) Programmatically build workflow definitions
-* (_WIP_) Validate workflow definitions
+* Programmatically build workflow definitions
+* Validate workflow definitions
 
 ## Getting Started
 
@@ -20,7 +20,7 @@ To build the project and run tests locally:
 ```sh
 git clone https://github.com/serverlessworkflow/sdk-typescript.git
 cd sdk-typescript
-npm install && npm run test
+npm install && npm run update-code-base && npm run test
 ```
 
 
@@ -53,28 +53,28 @@ It will create a symbolic link from globally-installed `sdk-typescript` to `node
 #### Create Workflow using builder API
 
 ```typescript
-
-    const workflow = new WorkflowBuilder()
-        .withId("helloworld")
-        .withVersion("1.0")
-        .withName("Hello World Workflow")
-        .withDescription("Inject Hello World")
-        .withStart("Hello State")
-        .withStates([new InjectStateBuilder()
-            .withName("Hello State")
-            .withData({
+    const workflow = workflowJsonBuilder()
+        .id("helloworld")
+        .version("1.0")
+        .name("Hello World Workflow")
+        .description("Inject Hello World")
+        .start("Hello State")
+        .states([injectstateBuilder()
+            .type("inject")
+            .name("Hello State")
+            .data({
                 "result": "Hello World!"
             })
-            .withEnd(true).build()])
-        .build();
+            .end(true).build()])
+        .build());
 ```
 
 #### Load a file JSON/YAML to a Workflow instance
 
 ```typescript
-    const workflow = BaseWorkflow.fromSource(source)
+    const workflow = WorkflowConverter.fromString(source)
 ```
-Where `source` is the file location.
+Where `source` is a JSON or a YAML string.
 
 
 
@@ -83,52 +83,43 @@ Where `source` is the file location.
 Having the following workflow instance:
 
 ```typescript
-    const workflow = new WorkflowBuilder()
-        .withId("helloworld")
-        .withVersion("1.0")
-        .withName("Hello World Workflow")
-        .withDescription("Inject Hello World")
-        .withStart("Hello State")
-        .withStates([new InjectStateBuilder()
-            .withName("Hello State")
-            .withData({
+    const workflow = workflowJsonBuilder()
+        .id("helloworld")
+        .version("1.0")
+        .name("Hello World Workflow")
+        .description("Inject Hello World")
+        .start("Hello State")
+        .states([injectstateBuilder()
+            .type("inject")
+            .name("Hello State")
+            .data({
                 "result": "Hello World!"
             })
-            .withEnd(true).build()])
-        .build();
+            .end(true).build()])
+        .build());
 ```
 
 You can convert it to its string representation in JSON or YAML format 
-by using the static methods `toJSON` or `toYAML` respectively:
+by using the static methods `toJson` or `toYaml` respectively:
 
 ```typescript
-    const workflowAsJSON = BaseWorkflow.toJSON(workflow);
+    const workflowAsJson = WorkflowConverter.toJson(workflow);
 ```
 
 ```typescript
-    const workflowAsYAML = BaseWorkflow.toYAML(workflow);
+    const workflowAsYaml = WorkflowConverter.toYaml(workflow);
 ```
 
 #### Validate workflow definitions
 
 The sdk provides a way to validate if a workflow object is compliant with the serverlessworkflow specification.
 
-`WorkflowValidator` class provides two methods: 
-
-- `isValid(): boolean`
-
-```typescript
-
-const isValid = new WorkflowValidator(workflow).isValid();
-
-```
-
-- `validate(): ValidationErrors`
+`validators` provides a map of validation functions: 
 
 ```typescript
-
-const validationErrors = new WorkflowValidator(workflow).validate();
-validationErrors.errors().forEach(error => console.error(error.message()))
-
-
-```
+const validate = validators.get('WorkflowJson');
+const isValid = validate(workflow);
+if (!isValid) {
+  validate.errors.forEach(error => console.error(error.message));
+}
+```