Fixes now broken links to SQLAlchemy docs

Changelog

@@ -2152,11 +2152,11 @@ the :setting:`CELERY_RESULT_ENGINE_OPTIONS` setting::
 .. _`SQLAlchemy`:
     http://www.sqlalchemy.org
 .. _`Supported Databases`:
-    http://www.sqlalchemy.org/docs/dbengine.html#supported-databases
+    http://www.sqlalchemy.org/docs/core/engines.html#supported-databases
 .. _`SQLAlchemy Connection String`:
-    http://www.sqlalchemy.org/docs/dbengine.html#create-engine-url-arguments
+    http://www.sqlalchemy.org/docs/core/engines.html#database-urls
 .. _`SQLAlchemy Connection Strings`:
-    http://www.sqlalchemy.org/docs/dbengine.html#create-engine-url-arguments
+    http://www.sqlalchemy.org/docs/core/engines.html#database-urls
 
 .. _v200-upgrade-cache:
 

docs/configuration.rst

@@ -170,10 +170,10 @@ the :setting:`CELERY_RESULT_ENGINE_OPTIONS` setting::
     CELERY_RESULT_ENGINE_OPTIONS = {"echo": True}
 
 .. _`Supported Databases`:
-    http://www.sqlalchemy.org/docs/dbengine.html#supported-databases
+    http://www.sqlalchemy.org/docs/core/engines.html#supported-databases
 
 .. _`Connection String`:
-    http://www.sqlalchemy.org/docs/dbengine.html#create-engine-url-arguments
+    http://www.sqlalchemy.org/docs/core/engines.html#database-urls
 
 Example configuration
 ~~~~~~~~~~~~~~~~~~~~~

docs/tutorials/otherqueues.rst

@@ -92,10 +92,10 @@ Some other `SQLAlchemy Connection String`_, examples:
     BROKER_HOST = "oracle://scott:tiger@127.0.0.1:1521/sidname"
 
 .. _`SQLAlchemy: Supported Databases`:
-    http://www.sqlalchemy.org/docs/dbengine.html#supported-databases
+    http://www.sqlalchemy.org/docs/core/engines.html#supported-databases
 
 .. _`SQLAlchemy Connection String`:
-    http://www.sqlalchemy.org/docs/dbengine.html#create-engine-url-arguments
+    http://www.sqlalchemy.org/docs/core/engines.html#database-urls
 
 Results
 ~~~~~~~