diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
index ddf400ea..b4db9289 100644
--- a/.github/FUNDING.yml
+++ b/.github/FUNDING.yml
@@ -24,5 +24,5 @@
 github: ThePhD
 patreon: ThePhD
 ko_fi: ThePhD
-custom: https://liberapay.com/ThePhD/
-#custom: https://www.paypal.me/thephd
+custom: https://www.paypal.me/thephd
+#custom: https://liberapay.com/ThePhD/
diff --git a/docs/presentations/2019.05.10 - ThePhD - The Plan for Tomorrow - Compile-Time Extension Points in C++.pdf b/docs/presentations/2019.05.10 - ThePhD - The Plan for Tomorrow - Compile-Time Extension Points in C++.pdf
index 6804db09..047e9a75 100644
Binary files a/docs/presentations/2019.05.10 - ThePhD - The Plan for Tomorrow - Compile-Time Extension Points in C++.pdf and b/docs/presentations/2019.05.10 - ThePhD - The Plan for Tomorrow - Compile-Time Extension Points in C++.pdf differ