[libpng16] Mention github issues and pull requests as a bug-reporting method.
diff --git a/libpng-manual.txt b/libpng-manual.txt
index 646f8de..5adb084 100644
--- a/libpng-manual.txt
+++ b/libpng-manual.txt
@@ -5230,10 +5230,14 @@
https://libpng.sourceforge.io/
+or as a "pull request" to
+
+ https://github.com/glennrp/libpng/pulls
+
We also accept patches built from the tar or zip distributions, and
simple verbal discriptions of bug fixes, reported either to the
SourceForge bug tracker, to the png-mng-implement at lists.sf.net
-mailing list, or directly to glennrp.
+mailing list, as github issues, or directly to glennrp.
XV. Coding style
diff --git a/libpng.3 b/libpng.3
index 70140e8..4ec40bf 100644
--- a/libpng.3
+++ b/libpng.3
@@ -5740,10 +5740,14 @@
https://libpng.sourceforge.io/
+or as a "pull request" to
+
+ https://github.com/glennrp/libpng/pulls
+
We also accept patches built from the tar or zip distributions, and
simple verbal discriptions of bug fixes, reported either to the
SourceForge bug tracker, to the png-mng-implement at lists.sf.net
-mailing list, or directly to glennrp.
+mailing list, as github issues, or directly to glennrp.
.SH XV. Coding style
