Merge pull request #8 from slaminad/update-readme

Update readme and add example

README.md

@@ -1,2 +1,29 @@
 # influxdb1-clientv2
-The old clientv2 for InfluxDB 1.x
+influxdb1-clientv2 is the current Go client API for InfluxDB 1.x. A Go client for the 2.0 API will be coming soon.
+
+InfluxDB is an open-source distributed time series database, find more about [InfluxDB](https://www.influxdata.com/time-series-platform/influxdb/) at https://docs.influxdata.com/influxdb/latest
+
+## Usage
+To import into your Go project, run the following command in your terminal:
+`go get github.com/influxdata/influxdb1-client/v2`
+Then, in your import declaration section of your Go file, paste the following:
+`import "github.com/influxdata/influxdb1-client/v2"`
+
+## Example
+The following example creates a new client to the InfluxDB host on localhost:8086 and runs a query for the measurement `cpu_load` from the `mydb` database. 
+``` go
+func ExampleClient_query() {
+	c, err := client.NewHTTPClient(client.HTTPConfig{
+		Addr: "http://localhost:8086",
+	})
+	if err != nil {
+		fmt.Println("Error creating InfluxDB Client: ", err.Error())
+	}
+	defer c.Close()
+
+	q := client.NewQuery("SELECT count(value) FROM cpu_load", "mydb", "")
+	if response, err := c.Query(q); err == nil && response.Error() == nil {
+		fmt.Println(response.Results)
+	}
+}
+```