Update _index.md
Add 'download/' to the OPERATOR_SDK_DL_URL
@@ -36,7 +36,7 @@ export OS=$(uname | awk '{print tolower($0)}')
Download the binary for your platform:
```sh
-export OPERATOR_SDK_DL_URL=https://github.com/operator-framework/operator-sdk/releases/v1.6.1
+export OPERATOR_SDK_DL_URL=https://github.com/operator-framework/operator-sdk/releases/download/v1.6.1
curl -LO ${OPERATOR_SDK_DL_URL}/operator-sdk_${OS}_${ARCH}
```
