Fix links to the migrating guide.

Author: mikelittle

other-docs/guides/upgrading/v14.md

@@ -4,8 +4,7 @@ order: 14
 
 # Upgrading to v14
 
-_If you are migrating from WordPress to Altis, check out
-the [migrating guide](../migrating/) first._
+_If you are migrating from WordPress to Altis, check out the [migrating guide](../migrating/) first._
 
 To upgrade to Altis v14, edit your `composer.json` and change the version
 constraint for `altis/altis` and any local

other-docs/guides/upgrading/v15.md

@@ -4,8 +4,7 @@ order: 15
 
 # Upgrading to v15
 
-_If you are migrating from WordPress to Altis, check out
-the [migrating guide](../migrating/) first._
+_If you are migrating from WordPress to Altis, check out the [migrating guide](../migrating/) first._
 
 To upgrade to Altis v15, edit your `composer.json` and change the version
 constraint for `altis/altis` and any local

other-docs/guides/upgrading/v16.md

@@ -4,8 +4,7 @@ order: 16
 
 # Upgrading to v16
 
-_If you are migrating from WordPress to Altis, check out
-the [migrating guide here](../migrating-from-wordpress.md) first._
+_If you are migrating from WordPress to Altis, check out the [migrating guide](../migrating/) first._
 
 To upgrade to Altis v16, edit your `composer.json` and change the version
 constraint for `altis/altis` and any local