Fix broken links detected by link checker

- Fix broken example links
- Fix broken provisioner links
- Ignore linode.com because of DDOS protection settings

Author: nywilken

website/content/docs/builders/tencentcloud-cvm.mdx

@@ -182,5 +182,5 @@ Here is a basic example for Tencentcloud.
 ```
 
 See the
-[examples/tencentcloud](https://github.com/hashicorp/packer/tree/master/examples/tencentcloud)
+[examples/tencentcloud](https://github.com/hashicorp/packer/tree/master/builder/tencentcloud/examples)
 folder in the packer project for more examples.