Upgrading ruby and jekyll versions

.github/CONTRIBUTING.md

@@ -1,7 +1,7 @@
 Our [technical contributions wiki](https://github.com/programminghistorian/jekyll/wiki/Making-technical-contributions) describes best practices for modifying the code that generates _The Programming Historian_ itself.
 
-If you are interested in making a _content_ contribution like a new lesson, please see our [pages on contributing as an author or an editor](http://programminghistorian.org/contribute).
+If you are interested in making a _content_ contribution like a new lesson, please see our [pages on contributing as an author or an editor](https://programminghistorian.org/contribute).
 
 ## Anti-harassment Policy
 
-The *Programming Historian* is dedicated to providing an open scholarly environment that offers community participants the freedom to thoroughly scrutinize ideas, to ask questions, make suggestions, or to requests for clarification, but also provides a harassment-free space for all contributors to the project, regardless of gender, gender identity and expression, sexual orientation, disability, physical appearance, body size, race, age or religion, or technical experience. We do not tolerate harassment or ad hominem attacks of community participants in any form. Participants violating these rules may be expelled from the community at the discretion of the editorial board. If anyone witnesses or feels they have been the victim of the above described activity, please contact our ombudspeople (see the contact for each language on our Project Team page: <http://programminghistorian.org/project-team>). Thank you for helping us to create a safe space.
+The *Programming Historian* is dedicated to providing an open scholarly environment that offers community participants the freedom to thoroughly scrutinize ideas, to ask questions, make suggestions, or to requests for clarification, but also provides a harassment-free space for all contributors to the project, regardless of gender, gender identity and expression, sexual orientation, disability, physical appearance, body size, race, age or religion, or technical experience. We do not tolerate harassment or ad hominem attacks of community participants in any form. Participants violating these rules may be expelled from the community at the discretion of the editorial board. If anyone witnesses or feels they have been the victim of the above described activity, please contact our ombudspeople (see the contact for each language on our Project Team page: <https://programminghistorian.org/project-team>). Thank you for helping us to create a safe space.

.github/workflows/build.yml

@@ -19,7 +19,7 @@ jobs:
         if : github.event.action != 'closed'
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 2.6
+          ruby-version: 3.2.2
           bundler-cache: true # runs 'bundle install' and caches installed gems automatically
     # We then check if we can build our Jekyll site (all this logic is built-in with Jekyll and this prevents us from merging in any syntax errors).  
       - name: Jekyll build
@@ -29,7 +29,7 @@ jobs:
           bundle exec jekyll build
     # Next we check all the links in our site to make sure we aren't pushing up broken links.
       - name: Check HTML
-        uses: zoeleblanc/htmlproofer@master
+        uses: chabad360/htmlproofer@master
         if : github.event.action != 'closed'
         with:
           directory: "./_site"

.htmlproofer.yml

@@ -0,0 +1,30 @@
+assume_extension: true
+check_img_alt: false
+only_4xx: true
+http_status_ignore:
+  - 429
+  - 403
+  - 400
+url_ignore:
+  - /\/\/www.gutenberg.org\/.*?/
+  - /https:\/\/github.com\/programminghistorian\/.*?/
+  - /https:\/\/github.com\/orgs\/programminghistorian\/.*?/
+  - /\#/
+  - /espanol/
+  - /deprecated/
+  - /collection.britishmuseum.org/
+  - /analytics.hathitrust.org/
+  - /fr.wikipedia.org\/wiki/
+  - /https:\/\/web.archive.org\/web\/20180831094856\/http:\/\/www.dlsi.ua.es\/~borja\/riilua\/6.TopicModeling_v02.pdf/
+  - https://github.com/programminghistorian/jekyll/commits/gh-pages
+  - https://github.com/programminghistorian/jekyll/commits/gh-pages/.*
+directory_ignore:
+  - /assets/
+  - /retired/
+  - /retirada/
+  - /retrait/
+  - /posts/
+ignore_elements:
+  - pre
+  - code
+  - script

.ruby-version

@@ -1 +1 @@
-2.6.2
+3.2.2