Fix or remove URLs that are causing docs tests to fail

CHANGELOG.rst

@@ -52,7 +52,7 @@ Changelog
   Contributed by Andre Brisco in `#543 <https://github.com/pytest-dev/pytest-cov/pull/543>`_
   and Colin O'Dell in `#525 <https://github.com/pytest-dev/pytest-cov/pull/525>`_.
 * Added support for LCOV output format via `--cov-report=lcov`. Only works with coverage 6.3+.
-  Contributed by Christian Fetzer in `#536 <https://github.com/pytest-dev/pytest-cov/issues/536>`_.
+  Contributed by Christian Fetzer in `#536 <https://github.com/pytest-dev/pytest-cov/pull/536>`_.
 * Modernized pytest hook implementation.
   Contributed by Bruno Oliveira in `#549 <https://github.com/pytest-dev/pytest-cov/pull/549>`_
   and Ronny Pfannschmidt in `#550 <https://github.com/pytest-dev/pytest-cov/pull/550>`_.
@@ -152,7 +152,7 @@ Changelog
 * Made pytest startup faster when plugin not active by lazy-importing.
   Contributed by Anders Hovmöller in `#339 <https://github.com/pytest-dev/pytest-cov/pull/339>`_.
 * Various CI improvements.
-  Contributed by Daniel Hahler in `#363 <https://github.com/pytest-dev/pytest-cov/pull/>`_ and
+  Contributed by Daniel Hahler in `#363 <https://github.com/pytest-dev/pytest-cov/pull/363>`_ and
   `#364 <https://github.com/pytest-dev/pytest-cov/pull/364>`_.
 * Various Python support updates (drop EOL 3.4, test against 3.8 final).
   Contributed by Hugo van Kemenade in

README.rst

@@ -108,7 +108,7 @@ Would produce a report like::
 Documentation
 =============
 
-    http://pytest-cov.rtfd.org/
+    https://pytest-cov.readthedocs.io/en/latest/
 
 
 

docs/plugins.rst

@@ -10,7 +10,7 @@ The current way of dealing with this problem is using the append feature and man
 
     COV_CORE_SOURCE=src COV_CORE_CONFIG=.coveragerc COV_CORE_DATAFILE=.coverage.eager pytest --cov=src --cov-append
 
-Alternatively you can have this in ``tox.ini`` (if you're using `Tox <https://tox.readthedocs.io/en/latest/>`_ of course)::
+Alternatively you can have this in ``tox.ini`` (if you're using `Tox <https://tox.wiki/en/latest/>`_ of course)::
 
     [testenv]
     setenv =

docs/tox.rst

@@ -2,7 +2,7 @@
 Tox
 ===
 
-When using `tox <https://tox.readthedocs.io/>`_ you can have ultra-compact configuration - you can have all of it in
+When using `tox <https://tox.wiki/en/stable/>`_ you can have ultra-compact configuration - you can have all of it in
 ``tox.ini``::
 
     [tox]