Update _index.md
URL for arm64 is missing the 64 suffix.
@@ -34,7 +34,7 @@ sudo install skaffold /usr/local/bin/
```bash
# For Linux ARM64
-curl -Lo skaffold https://storage.googleapis.com/skaffold/releases/latest/skaffold-linux-arm && \
+curl -Lo skaffold https://storage.googleapis.com/skaffold/releases/latest/skaffold-linux-arm64 && \
sudo install skaffold /usr/local/bin/
```
