feat: add linkcheck to docs build

doc/Makefile

@@ -32,6 +32,7 @@ pdf:
 
 # Build HTML files and generate examples as .py files
 html:
+	@$(SPHINXBUILD) -M linkcheck "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
 	@$(SPHINXBUILD) -M html "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
 	cd $(BUILDDIR)/html/examples
 	for d in */ ; do

doc/make.bat

@@ -32,6 +32,7 @@ if errorlevel 9009 (
 goto end
 
 :html
+%SPHINXBUILD% -M linkcheck %SOURCEDIR% %BUILDDIR% %SPHINXOPTS% %O%
 %SPHINXBUILD% -M html %SOURCEDIR% %BUILDDIR% %SPHINXOPTS% %O%
 goto build-examples-py
 

doc/source/examples/01_getting_started/02_units.mystnb

@@ -37,7 +37,7 @@ Now, with this ``UnitRegistry`` object called ``UNITS``, we will create
 ``Quantity`` objects also have convenience methods for: transforming to different units, comparing
 magnitudes/values, units, etc. For more information on their functioning please refer to the
 [pint.Quantity](https://pint.readthedocs.io/en/stable/api/base.html#most-important-classes)
-docs or the [Pint tutorial](https://pint.readthedocs.io/en/stable/getting/tutorial.html?#tutorial).
+docs or the [Pint tutorial](https://pint.readthedocs.io/en/stable/getting/tutorial.html).
 
 ```{code-cell} ipython3
 from pint import Quantity

doc/source/getting_started/docker.rst

@@ -49,7 +49,7 @@ Docker container.
 
 #. If you have Docker installed, use a GitHub personal access token (PAT) with packages read permission to authorize Docker
    to access this repository. For more information,
-   see `creating a personal access token <https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/creating-a-personal-access-token>`_.
+   see `creating a personal access token <https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/managing-your-personal-access-tokens>`_.
 
 #. Save the token to a file: