Fixed lint issues in .env.example

.env.example

@@ -8,12 +8,12 @@
 # We should switch to more standard OTEL_EXPORTER_OTLP_HEADERS
 # For now use the Grafana API TOKEN as is.
 # See https://grafana.com/docs/grafana-cloud/send-data/otlp/send-data-otlp/
-GRAFANA_OTLP_API_TOKEN='<Grafana Cloud API Token>'
+GRAFANA_OTLP_API_TOKEN="<Grafana Cloud API Token>"
 # we would use the standard OpenTelemetry environmental variables if not for the
 # `/v1/traces`, `/v1/metrics`, `/v1/logs` that needs to added for
 # tracing, metrics and logs endpoints
 # See https://grafana.com/docs/opentelemetry/instrumentation/configuration/environment-variables/
 # The standard is OTEL_EXPORTER_OTLP_ENDPOINT
-GRAFANA_OTLP_ENDPOINT="<Grafana Cloud OTLP Gateway Endpoint for your Grafana Instance"
-GRAFANA_OTLP_USERNAME='<Grafana Cloud Instance ID'
-OTEL_PYTHON_LOG_CORRELATION="true"
+GRAFANA_OTLP_ENDPOINT="<Grafana Cloud OTLP Gateway Endpoint for your Grafana Instance>"
+GRAFANA_OTLP_USERNAME="<Grafana Cloud Instance ID>"
+OTEL_PYTHON_LOG_CORRELATION=true