clarify install instructions (#79)

.github/README.md

@@ -40,6 +40,9 @@ Additionally, the OpenTelemetry Contrib collector has also been changed to the [
    - `YOUR_APM_SECRET_TOKEN`: your Elastic APM secret token
 1. Execute the following commands to deploy the OpenTelemetry demo to your Kubernetes cluster:
    ```
+   # clone this repository
+   git clone https://github.com/elastic/opentelemetry-demo
+   
    # switch to the kubernetes/elastic-helm directory
    cd kubernetes/elastic-helm
 
@@ -70,7 +73,7 @@ In order to add Node level metrics collection we can run an additional Otel coll
    - `YOUR_ELASTICSEARCH_ENDPOINT`: your Elasticsearch endpoint (*with* `https://` prefix example: `https://1234567.us-west2.gcp.elastic-cloud.com:443`).
    - `YOUR_ELASTICSEARCH_API_KEY`: your Elasticsearch API Key
 
-2. Execute the following command to deploy the OpenTelemetry Collector to your Kubernetes cluster:
+2. Execute the following command to deploy the OpenTelemetry Collector to your Kubernetes cluster, in the same directory `kubernetes/elastic-helm` in this repository.
 
 ```
 # deploy the Elastic OpenTelemetry collector distribution through helm install