docs: update helm operator integration glob patterns
@@ -98,6 +98,8 @@ is required for any of these to take effect.
| `tag.fluxcd.io/<alias>` | `sub.tag` | |
| `filter.fluxcd.io/<alias>` | `glob:master-*` | |
+> Note: Glob patterns following `glob:` are sensitive to spaces
+
The following example `HelmRelease` specifies two images:
```yaml
