Add change log entry (SubjectAltName extension in CSR)

Signed-off-by: Przemek Stekiel <przemyslaw.stekiel@mobica.com>
diff --git a/ChangeLog.d/san_csr.txt b/ChangeLog.d/san_csr.txt
new file mode 100644
index 0000000..b5c6cf3
--- /dev/null
+++ b/ChangeLog.d/san_csr.txt
@@ -0,0 +1,2 @@
+Features
+   * Add support to include the SubjectAltName extension to a CSR.