add a hint to run the table generator before

simulation is possible

examples/xspice/table/clc409mod.sub

@@ -1,3 +1,5 @@
+* please run the table generator table-generator-q-2d.sp in ngspice to
+* create the table data file qinn-clc409-2d-1.table as is required here
 *
 *   This is a Very Wide band, Low Distortion Monolithic
 *   Current Feedback Op Amp.

examples/xspice/table/table-model-bip-2d-1.sp

@@ -1,5 +1,7 @@
 ** npn bipolar: table 2D (Vce, Ib) compared to q model
 * bipolar transistor qinn from National Semi op-amp clc409
+* please run the table generator table-generator-q-2d.sp in ngspice to
+* create the table data file qinn-clc409-2d-1.table as required here
 
 ** Circuit Description **
 Q3 2 1 3 QINN
@@ -12,6 +14,7 @@ ib2 0 bb 2u
 vce2 cc 0 1
 vee2 ee 0 0
 
+* set a simulation temperature
 .options temp=1
 
 .subckt tbqnpn c b e

examples/xspice/table/table-model-bip-2d-2.sp

@@ -1,4 +1,6 @@
 OpAmp Test with Bipolar Table Model
+* please run the table generator table-generator-q-2d.sp in ngspice to
+* create the table data file qinn-clc409-2d-1.table required by clc409mod.sub
 
 vddp vp 0 3
 vddn vn 0 -3
@@ -12,6 +14,7 @@ vin in 0 dc 0 PULSE(-1 1 20NS 20NS 20NS 500NS 1000NS)
 
 * circuit with standard bip model
 *.include clc409.sub
+
 * circuit with qinn bipolar table model
 .include clc409mod.sub