Add documentation and documentation testing

docs/src/connect.md.ejs

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+## connect
+
+`connect(): Promise<void>`
+
+Tells the RippleAPI instance to connect to its server(s).
+
+### Parameters
+
+This method has no parameters.
+
+### Return Value
+
+This method returns a promise that resolves with a void value when a connection is established.
+
+### Example
+
+See [Boilerplate](#boilerplate) for code sample.