patch:apply - update documentation with possible patch formats.
Bug: Google b/269444768
Release-Notes: skip
Change-Id: Ic49c4529a08dc17239e019323313f797219a23fa
diff --git a/Documentation/rest-api-changes.txt b/Documentation/rest-api-changes.txt
index 75d8847..2810d1e 100644
--- a/Documentation/rest-api-changes.txt
+++ b/Documentation/rest-api-changes.txt
@@ -6709,6 +6709,7 @@
|`patch` |required|
The patch to be applied. Must be compatible with `git diff` output.
For example, link:#get-patch[Get Patch] output.
+The patch must be provided as UTF-8 text, either directly or base64-encoded.
|=================================
[[applypatchpatchset-input]]
