docs: Adapt link to siemens-internal contributing guideline (#62)

Author: theBadT

.github/workflows/check-links-workflow.yml

@@ -13,8 +13,11 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v3
 
-      - name: Check links
-        uses: gaurav-nelson/github-action-markdown-link-check@v1
+      - name: Link Checker
+        uses: lycheeverse/lychee-action@v1.8.0
         with:
-          check-modified-files-only: 'yes'
-          base-branch: 'main'
+          args: --verbose --no-progress --exclude "^https://github\\.siemens\\.cloud" '**/*.md'
+          fail: true
+          format: markdown
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

CONTRIBUTING.md

@@ -83,6 +83,6 @@ Once all clearings are successful, our admins will create the repository within
 
 ### Siemens employees
 
-In case you are a Siemens employee who likes to propose a new repository for the GitHub community, please the [Siemens contribution process](https://code.siemens.com) for a set of follow along instructions.
+In case you are a Siemens employee who likes to propose a new repository for the GitHub community, please read the [Siemens contribution process](https://github.siemens.cloud/simatic-ax/.github/blob/main/profile/CONTRIBUTING.md) for a set of follow along instructions.
 
 > For all inquiries, please get in touch via our [Admin Team](https://github.com/orgs/simatic-ax/teams/toa-teamofaxion).