feat: documentation

docs/readme.md

@@ -1 +1,39 @@
-hello
+# ASAAS SDK
+
+
+This SDK was built by [@jpdev01](https://github.com/jpdev01) to facilitate the development of integrations with https://asaas.com.br
+
+## :closed_book: Documentação
+
+## Hot to use the SDK
+
+The recommended way to use the AWS SDK for Java in your project is to consume it from Maven Central. (includes all modules present in the API).
+```xml
+<dependency>
+    <groupId>io.github.jpdev01</groupId>
+    <artifactId>asaassdk</artifactId>
+    <version>1.2-SNAPSHOT</version>
+</dependency>
+```
+
+## Scheduling a invoice
+```java
+Invoice invoice = Invoice.creator()
+                .setServiceDescription("Nota fiscal da Fatura 101940. Descrição dos Serviços: ANÁLISE E DESENVOLVIMENTO DE SISTEMAS")
+                .setObservations("Mensal referente aos trabalhos de Junho.")
+                .setValue(Money.create(300))
+                .setDeductions(Money.create(2))
+                .setEffectiveDate(new Date())
+                .setMunicipalServiceName("Análise e Desenvolvimento de Sistemas")
+                .setTaxes(
+                        new Taxes()
+                                .setRetainIss(true)
+                                .setIss(Money.create(3))
+                                .setCofins(Money.create(3))
+                                .setCsll(Money.create(1))
+                                .setInss(Money.create(3))
+                                .setIr(Money.create(1.5))
+                                .setPis(Money.create(0.65))
+                )
+                .create();
+```