Bump pymdown-extensions from 7.0 to 7.1 (#156)

Bumps [pymdown-extensions](https://github.com/facelessuser/pymdown-extensions) from 7.0 to 7.1.
- [Release notes](https://github.com/facelessuser/pymdown-extensions/releases)
- [Commits](https://github.com/facelessuser/pymdown-extensions/compare/7.0.0...7.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Pipfile.lock

@@ -745,11 +745,11 @@
         },
         "pymdown-extensions": {
             "hashes": [
-                "sha256:71cbc748789959d4b964fe8dc038f5436779d244399fd5ba3a0bbfe9a0e43b1f",
-                "sha256:d27a8bc8bb7ecac589e832465dbefe24d7fedd9792636c6d0ac521e5045bedc0"
+                "sha256:5bf93d1ccd8281948cd7c559eb363e59b179b5373478e8a7195cf4b78e3c11b6",
+                "sha256:8f415b21ee86d80bb2c3676f4478b274d0a8ccb13af672a4c86b9ffd22bd005c"
             ],
             "index": "pypi",
-            "version": "==7.0"
+            "version": "==7.1"
         },
         "pyparsing": {
             "hashes": [