diff --git a/doc/devel/development_setup.rst b/doc/devel/development_setup.rst
index f699b8579ea7..2358b923c9ce 100644
--- a/doc/devel/development_setup.rst
+++ b/doc/devel/development_setup.rst
@@ -1,3 +1,15 @@
+.. redirect-from:: /devel/gitwash/configure_git
+.. redirect-from:: /devel/gitwash/dot2_dot3
+.. redirect-from:: /devel/gitwash/following_latest
+.. redirect-from:: /devel/gitwash/forking_hell
+.. redirect-from:: /devel/gitwash/git_development
+.. redirect-from:: /devel/gitwash/git_install
+.. redirect-from:: /devel/gitwash/git_intro
+.. redirect-from:: /devel/gitwash/git_resources
+.. redirect-from:: /devel/gitwash/patching
+.. redirect-from:: /devel/gitwash/set_up_fork
+.. redirect-from:: /devel/gitwash/index
+
 .. _installing_for_devs:
 
 =====================================
diff --git a/doc/users/prev_whats_new/whats_new_3.3.0.rst b/doc/users/prev_whats_new/whats_new_3.3.0.rst
index f9c9fdcd3713..f53f94b038bd 100644
--- a/doc/users/prev_whats_new/whats_new_3.3.0.rst
+++ b/doc/users/prev_whats_new/whats_new_3.3.0.rst
@@ -373,8 +373,8 @@ set with the new rcParameter :rc:`axes.titley`.
 .. plot::
 
     fig, axs = plt.subplots(1, 2, constrained_layout=True, figsize=(5, 2))
-    axs[0].set_title('y=0.7\n$\sum_{j_n} x_j$', y=0.7)
-    axs[1].set_title('y=None\n$\sum_{j_n} x_j$')
+    axs[0].set_title('y=0.7\n$\\sum_{j_n} x_j$', y=0.7)
+    axs[1].set_title('y=None\n$\\sum_{j_n} x_j$')
     plt.show()
 
 Offset text is now set to the top when using ``axis.tick_top()``