Fix: Added Github Actions to check for broken embedded links.

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,11 @@
+---
+title: Embedded link(s) inaccessible
+labels: bug
+---
+### Description
+Some links in this repository led to a HTTP Status code 404, which means the content is not accessible. 
+Please check the logs of the workflow below:
+
+
+{{ env.BODY }}
+

.github/workflows/broken-link-check.yml

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+# This workflow checks if the embedded links are broken in .md files.
+# It runs every Thursday at 8AM PST (3PM UTC) and goes through .md files of 
+# all  directories and subdirectories. For any broken link found, it creates
+# an issue.
+
+name: Check For Broken Embedded Links
+
+on: 
+  push:
+    branches:
+      - main
+  schedule:
+    - cron: "0 15 * * 4"
+
+jobs:
+  check-for-broken-links:
+    name: Check for broken links
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - id: checking_links
+        name: checking_links
+        uses: gaurav-nelson/github-action-markdown-link-check@v1
+        with:
+          use-quiet-mode: 'no'
+          use-verbose-mode: 'yes'

.github/workflows/broken-link-issue.yml

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+# This workflow runs only when broken-link-check fails. This creates
+# an issue using an issue template.
+
+name: Markdown Link Check log parser
+on:
+  workflow_run:
+    workflows: [
+      "Check For Broken Embedded Links"
+    ]
+    types:
+      - completed
+defaults:
+  run:
+    shell: pwsh
+jobs:
+  main:
+    name: Markdown Link Check log parser
+    if: ${{ github.event.workflow_run.conclusion == 'failure' }}
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Run markdown link check log parser
+        id: mlc-log-parser
+        uses: edumserrano/markdown-link-check-log-parser@v1
+        with:
+          run-id: '${{ github.event.workflow_run.id }}'
+          job-name: Check for broken links
+          step-name: checking_links
+          only-errors: 'true'
+          output: 'step-json'
+          json-filepath: './mlc-json-result.json'
+      - name: Dump output from previous step
+        id: data_dump
+        run: >
+          $result = '${{ steps.mlc-log-parser.outputs.mlc-result }}' |
+          ConvertFrom-Json
+
+          Write-Output "Total files checked: $($result.TotalFilesChecked)"
+
+          Write-Output "Total links checked: $($result.TotalLinksChecked)"
+
+          Write-Output "Has errors: $($result.HasErrors)"
+
+          $resultAsJsonIndented = ConvertTo-Json -Depth 4 $result
+
+          Write-Output $resultAsJsonIndented
+
+      - name: Checkout master
+        uses: actions/checkout@master
+      - run: >
+          Write-Output '${{ steps.mlc-log-parser.outputs.mlc-result }}'
+      - name: Create issue if there are broken links
+        uses: JasonEtco/create-an-issue@v2.9.1
+        env:
+          GITHUB_TOKEN: ${{ github.token }}
+          BODY: ${{ steps.mlc-log-parser.outputs.mlc-result }}