doc: Fix op-test doc URL

Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
diff --git a/doc/conf.py b/doc/conf.py
index 2c94dec..3e137ce 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -165,5 +165,5 @@
 # Example configuration for intersphinx: refer to the Python standard library.
 intersphinx_mapping = {'python': ('https://docs.python.org/', None),
    'skiboot': ('https://open-power.github.io/skiboot/doc/', None),
-   'op-test': ('https://open-power.github.io/op-test-framework/', None),
+   'op-test': ('https://open-power.github.io/op-test/', None),
 }