patch 8.0.0763: libvterm can be improved

Problem:    Libvterm can be improved.
Solution:   Various small improvements, more comments.
diff --git a/src/version.c b/src/version.c
index c344072..e2ab84c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -770,6 +770,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    763,
+/**/
     762,
 /**/
     761,