Update runtime files.
diff --git a/runtime/doc/terminal.txt b/runtime/doc/terminal.txt
index 586bc08..db126de 100644
--- a/runtime/doc/terminal.txt
+++ b/runtime/doc/terminal.txt
@@ -1,4 +1,4 @@
-*terminal.txt* For Vim version 8.1. Last change: 2019 Oct 20
+*terminal.txt* For Vim version 8.1. Last change: 2019 Nov 01
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -1173,8 +1173,12 @@
*termdebug-example*
Start in the Vim "src" directory and build Vim: >
% make
+Make sure that debug symbols are present, usually that means that $CFLAGS
+includes "-g".
+
Start Vim: >
% ./vim
+
Load the termdebug plugin and start debugging Vim: >
:packadd termdebug
:Termdebug vim