book: fix link to GitHub doc

Signed-off-by: Stefan Büringer [email protected]

.markdownlinkcheck.json

@@ -1,9 +1,14 @@
 {
-    "ignorePatterns": [
-        {
+    "ignorePatterns": [{
         "pattern": "^http://localhost"
+    }],
+    "httpHeaders": [{
+        "comment": "Workaround as suggested here: https://github.com/tcort/markdown-link-check/issues/201",
+        "urls": ["https://docs.github.com/"],
+        "headers": {
+            "Accept-Encoding": "zstd, br, gzip, deflate"
         }
-],
+    }],
     "timeout": "5s",
     "retryOn429": true,
     "retryCount": 5,

docs/book/src/clusterctl/provider-contract.md

@@ -46,7 +46,7 @@ A GitHub release can be used as a provider repository if:
 * The release tag is a valid semantic version number
 * The components YAML, the metadata YAML and eventually the workload cluster templates are include into the release assets.
 
-See the [GitHub help](https://help.github.com/en/github/administering-a-repository/creating-releases) for more information
+See the [GitHub docs](https://docs.github.com/en/repositories/releasing-projects-on-github/managing-releases-in-a-repository) for more information
 about how to create a release.
 
 #### Creating a local provider repository