docs: add missing slashes to url in authoringprs

Changed `repo_url` and `source_url` documentation in the pull request
authoring guide to use proper URLs, aligning with
documentation standards.

Signed-off-by: Chmouel Boudjnah <[email protected]>

Author: chmouel

docs/content/docs/guide/authoringprs.md

@@ -56,12 +56,12 @@ check out the code that is being tested.
 | pull_request_number | The pull or merge request number, only defined when we are in a `pull_request` event or push event occurred when pull request is merged.                                        | `{{pull_request_number}}`           | 1                                                                                                                                                             |
 | repo_name           | The repository name.                                                                                                                                                            | `{{repo_name}}`                     | pipelines-as-code                                                                                                                                             |
 | repo_owner          | The repository owner in the git provider. (For VCS providers with owner hierarchies, e.g. GitLab's orgs; namespaces; groups; and subgroups, the full ownership slug is used)    | `{{repo_owner}}`                    | openshift-pipelines                                                                                                                                           |
-| repo_url            | The repository full URL.                                                                                                                                                        | `{{repo_url}}`                      | https:/github.com/openshift-pipelines/pipelines-as-code                                                                                                       |
+| repo_url            | The repository full URL.                                                                                                                                                        | `{{repo_url}}`                      | <https://github.com/openshift-pipelines/pipelines-as-code>                                                                                                       |
 | revision            | The commit full sha revision.                                                                                                                                                   | `{{revision}}`                      | 1234567890abcdef                                                                                                                                              |
 | sender              | The sender username (or account ID on some providers) of the commit.                                                                                                            | `{{sender}}`                        | johndoe                                                                                                                                                       |
 | source_branch       | The branch name where the event comes from.                                                                                                                                     | `{{source_branch}}`                 | main                                                                                                                                                          |
 | git_tag             | The Git tag pushed (only available for tag push events; otherwise empty `""`).                                                                                                  | `{{git_tag}}`                       | v1.0                                                                                                                                                          |
-| source_url          | The source repository URL from where the event comes (same as the value `repo_url` for push events).                                                                            | `{{source_url}}`                    | https:/github.com/openshift-pipelines/pipelines-as-code                                                                                                       |
+| source_url          | The source repository URL from where the event comes (same as the value `repo_url` for push events).                                                                            | `{{source_url}}`                    | <https://github.com/openshift-pipelines/pipelines-as-code>                                                                                                       |
 | target_branch       | The branch name on which the event targets (same as `source_branch` for push events).                                                                                           | `{{target_branch}}`                 | main                                                                                                                                                          |
 | target_namespace    | The target namespace where the Repository has matched and the PipelineRun will be created.                                                                                      | `{{target_namespace}}`              | my-namespace                                                                                                                                                  |
 | trigger_comment     | The comment triggering the PipelineRun when using a [GitOps command]({{< relref "/docs/guide/running.md#gitops-command-on-pull-or-merge-request" >}}) (like `/test`, `/retest`) | `{{trigger_comment}}`               | /merge-pr branch                                                                                                                                              |