Fixed broken links and redirects in docs.

docs/ref/contrib/gis/geoip2.txt

@@ -19,7 +19,7 @@ that ``geoip2`` can leverage the C library's faster speed.
 
 __ https://geoip2.readthedocs.io/
 __ https://pypi.org/project/geoip2/
-__ https://dev.maxmind.com/geoip/geoip2/geolite2/
+__ https://dev.maxmind.com/geoip/geolite2-free-geolocation-data
 __ https://github.com/maxmind/libmaxminddb/
 
 Example

docs/ref/csrf.txt

@@ -160,7 +160,7 @@ Finally, you'll need to set the header on your AJAX request. Using the
         // ...
     });
 
-.. _fetch(): https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch
+.. _fetch(): https://developer.mozilla.org/en-US/docs/Web/API/fetch
 
 Using CSRF in Jinja2 templates
 ------------------------------

docs/topics/email.txt

@@ -209,7 +209,7 @@ from the request's POST data, sends that to admin@example.com and redirects to
             # to get proper validation errors.
             return HttpResponse('Make sure all fields are entered and valid.')
 
-.. _Header injection: http://nyphp.org/phundamentals/8_Preventing-Email-Header-Injection.html
+.. _Header injection: http://www.nyphp.org/phundamentals/8_Preventing-Email-Header-Injection.html
 
 .. _emailmessage-and-smtpconnection:
 

docs/topics/testing/tools.txt

@@ -1024,7 +1024,7 @@ out the `full reference`_ for more details.
     for more information.
 
     .. _Selenium FAQ: https://web.archive.org/web/20160129132110/http://code.google.com/p/selenium/wiki/FrequentlyAskedQuestions#Q:_WebDriver_fails_to_find_elements_/_Does_not_block_on_page_loa
-    .. _Selenium documentation: https://www.selenium.dev/documentation/en/webdriver/waits/#explicit-wait
+    .. _Selenium documentation: https://www.selenium.dev/documentation/webdriver/waits/#explicit-wait
 
 Test cases features
 ===================