Fix up XRP-API docs for XRPL.org display

dactyl-config.yml

@@ -69,6 +69,8 @@ targets:
         github_forkurl: https://github.com/ripple/xrpl-dev-portal
         github_branch: master
         locale_file: locale/en/LC_MESSAGES/messages.mo
+        link_subs:
+            "./src/api-v3/paths/preparations/payments.ts": "https://github.com/xpring-eng/xrp-api/blob/master/src/api-v3/paths/preparations/payments.ts"
 
     -   name: ja
         lang: ja
@@ -169,6 +171,8 @@ targets:
         github_forkurl: https://github.com/ripple/xrpl-dev-portal
         github_branch: master
         no_cover: true
+        link_subs:
+            "./src/api-v3/paths/preparations/payments.ts": "https://github.com/xpring-eng/xrp-api/blob/master/src/api-v3/paths/preparations/payments.ts"
 
     # Data API target for porting changes to the README in the upstream repo
     # Intended for use in markdown (--md) mode.
@@ -5555,6 +5559,8 @@ pages:
         funnel: Docs
         doc_type: References
         supercategory: XRP-API
+        filters:
+            - xrpapi_readme
         targets:
             - en
             - ja

tool/filter_xrpapi_readme.py

@@ -0,0 +1,13 @@
+def filter_markdown(md, **kwargs):
+    """
+    Remove the link to the dev portal from the readme and replace it with
+    a link to the repo (since we're in the dev portal already).
+    """
+
+    REMOVE = """## [➡️ XRP API Reference Documentation](https://xrpl.org/xrp-api.html)
+
+See the full reference documentation on the XRP Ledger Dev Portal."""
+
+    REPLACEMENT = """[[Source]](https://github.com/xpring-eng/xrp-api "Source")"""
+
+    return md.replace(REMOVE, REPLACEMENT)