doc: ensure nested lists render properly in mkdocs

[skip ci]

Author: flavorjones

CONTRIBUTING.md

@@ -187,25 +187,25 @@ In any case, the general pipeline we use is the same for `main` and for PRs incl
 - basic security sanity check: run rubocop
 - fast feedback for obvious failures: run against system libraries on vanilla ubuntu
 - run on all supported versions of CRuby:
-  - once with packaged libraries
-  - once with system libraries
-  - once on valgrind (to look for memory bugs)
+    - once with packaged libraries
+    - once with system libraries
+    - once on valgrind (to look for memory bugs)
 - run on JRuby
 - run on a Musl (Alpine) system:
-  - against system libraries
-  - with valgrind using packaged libraries
+    - against system libraries
+    - with valgrind using packaged libraries
 - run with libxml-ruby loaded (because this interacts with libxml2 in conflicting ways)
-  - against system libraries
-  - with valgrind using packaged libraries
+    - against system libraries
+    - with valgrind using packaged libraries
 - build a "ruby" platform gem
-  - install and test on vanilla ubuntu
-  - install and test on musl
+    - install and test on vanilla ubuntu
+    - install and test on musl
 - build a native 64-bit linux gem
-  - install and test on vanilla ubuntu with all supported versions of CRuby
-  - install and test on musl
+    - install and test on vanilla ubuntu with all supported versions of CRuby
+    - install and test on musl
 - build a native 32-bit linux gem
-  - install and test on vanilla ubuntu
-  - install and test on musl
+    - install and test on vanilla ubuntu
+    - install and test on musl
 - build a jruby gem, install and test it
 
 These pipelines are configured in `/concourse/nokogiri.yml` and `nokogiri-pr.yml`. Those files file are ... nontrivial, and I'm sorry about that. See https://github.com/flavorjones/concourse-gem for help.

LICENSE-DEPENDENCIES.md

@@ -7,22 +7,22 @@ Note that this document is broken into multiple sections, each of which describe
 <!-- toc -->
 
 - [Default platform release ("ruby")](#default-platform-release-ruby)
-- [Native LinuxⓇ platform releases ("x86_64-linux" and "arm64-linux")](#native-linux-platform-releases-x86_64-linux-and-arm64-linux)
+- [Native LinuxⓇ platform releases ("x86_64-linux" and "arm64-linux")](#native-linux%E2%93%A1-platform-releases-x86_64-linux-and-arm64-linux)
 - [Native Darwin (macOSⓇ) platform releases ("x86_64-darwin" and "arm64-darwin")](#native-darwin-macos%E2%93%A1-platform-releases-x86_64-darwin-and-arm64-darwin)
 - [Native WindowsⓇ platform releases ("x86-mingw32" and "x64-mingw32")](#native-windows%E2%93%A1-platform-releases-x86-mingw32-and-x64-mingw32)
 - [JavaⓇ (JRuby) platform release ("java")](#java%E2%93%A1-jruby-platform-release-java)
 - [Appendix: Dependencies' License Texts](#appendix-dependencies-license-texts)
-  * [libxml2](#libxml2)
-  * [libxslt](#libxslt)
-  * [zlib](#zlib)
-  * [libiconv](#libiconv)
-  * [isorelax](#isorelax)
-  * [jing](#jing)
-  * [nekodtd](#nekodtd)
-  * [nekohtml](#nekohtml)
-  * [xalan](#xalan)
-  * [xerces](#xerces)
-  * [xml-apis](#xml-apis)
+    * [libxml2](#libxml2)
+    * [libxslt](#libxslt)
+    * [zlib](#zlib)
+    * [libiconv](#libiconv)
+    * [isorelax](#isorelax)
+    * [jing](#jing)
+    * [nekodtd](#nekodtd)
+    * [nekohtml](#nekohtml)
+    * [xalan](#xalan)
+    * [xerces](#xerces)
+    * [xml-apis](#xml-apis)
 
 <!-- tocstop -->
 

ROADMAP.md

@@ -20,8 +20,8 @@
   Mixing in Enumerable has some unintended consequences; plus we want to improve the attributes API
 
 * Some ideas for a better attributes API?
-  * (closed) [#666](https://github.com/sparklemotion/nokogiri/issues/666)
-  * [#765](https://github.com/sparklemotion/nokogiri/issues/765)
+    * (closed) [#666](https://github.com/sparklemotion/nokogiri/issues/666)
+    * [#765](https://github.com/sparklemotion/nokogiri/issues/765)
 
 
 ## improve CSS query parsing
@@ -33,11 +33,11 @@
   chained :not pseudoselectors
 
 * better jQuery selector and CSS pseudo-selector support:
-  * [#621](https://github.com/sparklemotion/nokogiri/issues/621)
-  * [#342](https://github.com/sparklemotion/nokogiri/issues/342)
-  * [#628](https://github.com/sparklemotion/nokogiri/issues/628)
-  * [#652](https://github.com/sparklemotion/nokogiri/issues/652)
-  * [#688](https://github.com/sparklemotion/nokogiri/issues/688)
+    * [#621](https://github.com/sparklemotion/nokogiri/issues/621)
+    * [#342](https://github.com/sparklemotion/nokogiri/issues/342)
+    * [#628](https://github.com/sparklemotion/nokogiri/issues/628)
+    * [#652](https://github.com/sparklemotion/nokogiri/issues/652)
+    * [#688](https://github.com/sparklemotion/nokogiri/issues/688)
 
 * [#394](https://github.com/sparklemotion/nokogiri/issues/394)
   nth-of-type is wrong, and possibly other selectors as well
@@ -53,10 +53,10 @@
 
 * there are a few tickets about searches not working properly if you
   use or do not use the context node as part of the search.
-  - [#213](https://github.com/sparklemotion/nokogiri/issues/213)
-  - [#370](https://github.com/sparklemotion/nokogiri/issues/370)
-  - [#454](https://github.com/sparklemotion/nokogiri/issues/454)
-  - [#572](https://github.com/sparklemotion/nokogiri/issues/572)
+    - [#213](https://github.com/sparklemotion/nokogiri/issues/213)
+    - [#370](https://github.com/sparklemotion/nokogiri/issues/370)
+    - [#454](https://github.com/sparklemotion/nokogiri/issues/454)
+    - [#572](https://github.com/sparklemotion/nokogiri/issues/572)
   could we fix this by making DocumentFragment be a subclass of NodeSet?
 
 
@@ -68,9 +68,9 @@
 ## Better Syntax around Node#xpath and NodeSet#xpath
 
 * look at those methods, and use of Node#extract_params in Node#{css,search}
-  * we should standardize on a hash of options for these and other calls
+    * we should standardize on a hash of options for these and other calls
 * what should NodeSet#xpath return?
-  * [#656](https://github.com/sparklemotion/nokogiri/issues/656)
+    * [#656](https://github.com/sparklemotion/nokogiri/issues/656)
 
 ## Encoding