Create check-urls.yml (#498)

* Create check-urls.yml

* Update check-urls.yml

* Update check-urls.yml

* fix link

* add ipynb

.github/workflows/check-urls.yml

@@ -0,0 +1,27 @@
+name: Check URLs
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: urls-checker
+      uses: urlstechie/urlchecker-action@master
+      with:
+        # A comma-separated list of file types to cover in the URL checks
+        file_types: .md,.py,.rst,ipynb
+
+        # Choose whether to include file with no URLs in the prints.
+        print_all: false
+
+        # The timeout seconds to provide to requests, defaults to 5 seconds
+        timeout: 5
+
+        # How many times to retry a failed request (each is logged, defaults to 1)
+        retry_count: 3
+
+        # choose if the force pass or not
+        force_pass : false

long_description.rst

@@ -69,6 +69,6 @@ a citation in your preferred format, and will also integrate well with citation
 
 License
 -------
-Released under the 3-Clause BSD license (see the `license file <https://github.com/xgi-org/xgi/tree/main/license.md>`_)
+Released under the 3-Clause BSD license (see the `license file <https://github.com/xgi-org/xgi/blob/main/LICENSE.md>`_)
 
 Copyright (C) 2021-2023 XGI Developers