* website: fix broken links on /docs/templates
* fix: redirected install-plugins link
* fix: debugging link
* fix: secrets manager link in docs
* fix: secrets manager link in source
* fix: amazon ami plugin link in docs
* fix: amazon ami plugin link in source
* fix: extending plugins link
* fix: plugins/builders/amazon links
* fix: various builders links
* fix: various amazon builder links
* fix: redirected terminology link
* fix: custom-provisioners link
* fix: docker-push redirected plugin link
* fix: googlecompute plugin links
* fix: hyperv iso plugin links
* website: update link to hcl upgrade guide
Co-authored-by: Wilken Rivera <wilken@hashicorp.com>
Co-authored-by: Wilken Rivera <wilken@hashicorp.com>