Replace git.openstack.org URLs with opendev.org URLs

Change-Id: I531e92ead8aad8930f477904d5202035067e9f7c

README.rst

@@ -29,5 +29,5 @@ The full terms and conditions of this license are detailed in the LICENSE file.
 
 * Free software: Apache license
 * Documentation: https://docs.openstack.org/octavia-lib/latest
-* Source: https://git.openstack.org/cgit/openstack/octavia-lib
+* Source: https://opendev.org/openstack/octavia-lib
 * Bugs: https://storyboard.openstack.org/#!/project/openstack/octavia-lib

doc/source/contributor/index.rst

@@ -1,6 +1,6 @@
-===========================
- Contributor Documentation
-===========================
+=========================
+Contributor Documentation
+=========================
 
 .. toctree::
    :maxdepth: 2

doc/source/library/index.rst

@@ -1,6 +1,6 @@
-========
+=====
 Usage
-========
+=====
 
 To use octavia-lib in a project::
 

tox.ini

@@ -14,7 +14,7 @@ setenv =
    OS_STDERR_CAPTURE={env:OS_STDERR_CAPTURE:true}
    OS_TEST_TIMEOUT=60
 deps =
-  -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt}
+  -c{env:UPPER_CONSTRAINTS_FILE:https://opendev.org/openstack/requirements/raw/branch/master/upper-constraints.txt}
   -r{toxinidir}/requirements.txt
   -r{toxinidir}/test-requirements.txt
 commands = stestr run {posargs}