Updated timeout in README

Updated the default timeout value in the README.

Author: AlmightyOatmeal

README.md

@@ -41,7 +41,7 @@ Object `options` is an optional map and may contains following fields:
 + **enableAmazonUniqueId** - boolean, `false` by default. If `true`, library will retrieve Amazon unique identifier and set it as `AWSUniqueId` dimension for each datapoint and event. Use this option only if your application deployed to Amazon  
 + **dimensions** - object, pre-defined dimensions for each datapoint and event. This object has key-value format `{ dimension_name: dimension_value, ...}`
 + **ingestEndpoint** -  string, custom url to send datapoints in format http://custom.domain/api/path
-+ **timeout** - number, sending datapoints timeout in ms (default is 1000ms)
++ **timeout** - number, sending datapoints timeout in ms (default is 5000ms)
 + **batchSize** - number, batch size to group sending datapoints 
 + **userAgents** - array of strings, items from this array will be added to 'user-agent' header separated by comma
 + **proxy** - string, defines an address and credentials for sending metrics through a proxy server. The string should have the following format `http://<USER>:<PASSWORD>@<HOST>:<PORT>`