Merge pull request #32415 from aburdenthehand/upi-coreos-table-typo

coreos-installer table: fix flag hyphen

Author: aburdenthehand

modules/installation-user-infra-machines-static-network.adoc

@@ -187,7 +187,7 @@ a|Specify the image URL manually.
 a|`-i,` `--ignition-file <path>`
 a|Embed an Ignition config from a file.
 
-a|`I`, `--ignition-url <URL>`
+a|`-I`, `--ignition-url <URL>`
 a|Embed an Ignition config from a URL.
 
 a|`--ignition-hash <digest>`