Updated anchored links to guides

Author: bbiggerr

openapi.yaml

@@ -6000,7 +6000,7 @@ paths:
 
         In an effort to fight spam, Linode restricts outbound connections on ports 25, 465, and 587
         on all Linodes for new accounts created after November 5th, 2019. For more information,
-        see [Sending Email on Linode](/docs/guides/running-a-mail-server/#sending-email-on-linode).
+        see our guide on [Running a Mail Server](/docs/guides/running-a-mail-server/).
 
         Linodes can be created in a number of ways:
 
@@ -11464,7 +11464,7 @@ paths:
       summary: Managed SSH Key View
       description: |
         Returns the unique SSH public key assigned to your Linode account's
-        Managed service. If you [add this public key](/docs/guides/linode-managed/#adding-the-public-key) to a Linode on your account,
+        Managed service. If you [add this public key](/docs/products/services/managed/get-started/#adding-the-public-key) to a Linode on your account,
         Linode special forces will be able to log in to the Linode with this key
         when attempting to resolve issues.
 
@@ -19959,7 +19959,7 @@ components:
           example:
             gh_username: linode
           description: |
-            This field is required only if the StackScript being deployed requires input data from the User for successful completion. See [User Defined Fields (UDFs)](/docs/guides/writing-scripts-for-use-with-linode-stackscripts-a-tutorial/#user-defined-fields-udfs) for more details.
+            This field is required only if the StackScript being deployed requires input data from the User for successful completion. See [User Defined Fields (UDFs)](/docs/products/tools/stackscripts/guides/write-a-custom-script/#declare-user-defined-fields-udfs) for more details.
 
             This field is required to be valid JSON.