Add delread4~ to help-intro patch.

pd/doc/5.reference/help-intro.pd

 #N struct ;
-#N canvas 355 59 579 812 12;
+#N canvas 355 65 579 812 12;
 #X declare;
 #X obj 24 150 bang;
 #X text 124 150 - output a bang message;
@@ -400,7 +400,7 @@ its "help window".;
 #X obj 157 1167 midirealtimein;
 #X obj 301 1169 midiclkin;
 #X text 124 3530 - read with a time-varying delay time;
-#X obj 24 3530 vd~;
+#X obj 97 3532 vd~;
 #X obj 26 2081 rsqrt~;
 #X text 115 2055 - approximate (16-bit) square root;
 #X text 125 2083 - reciprocal square root;
@@ -409,3 +409,4 @@ its "help window".;
 #X text 218 2106 - fast \, cheap 8 bits versions;
 #X obj 25 4056 sublist;
 #X text 125 4056 - get a pointer into a list within a scalar;
+#X obj 24 3532 delread4~;