add 12x2.5 magazine, fix typo in README

README.md

@@ -9,7 +9,7 @@ free-as-in-beer) proprietary software that would also amount to yet another
 package to have to learn how to use when all I want is to put some
 organization to the parts I've accumulated for various projects.  This one's
 different: it uses OpenSCAD to generate storage cartridges for whatever size
-of SMD tape you need, kn whatever capacity, and with options to hold
+of SMD tape you need, in whatever capacity, and with options to hold
 multiple cartridges together with magnets and/or a DIN rail.  It borrows
 several ideas from similar gadgets I've seen elsewhere.
 
@@ -18,9 +18,9 @@ figure out what to tweak to produce the sizes you need/want.
 
 I've also included a script to produce thin, quick-printing labels that you
 can glue on, since 8mm paper labels for label printers seem to be hard to
-come by.  They're intended to be printed in two colors: the first two layers
-in the background color you want, then the last three in the text color you
-want.
+come by (and they often don't stick well to PLA anyway).  They're intended 
+to be printed in two colors: the first two layers in the background color 
+you want, then the last three in the text color you want.
 
 You can also find this project at
 [Printables.com](https://www.printables.com/model/303558-parametric-smd-storage-cartridges-openscad).

labeler.scad

@@ -2,10 +2,10 @@ use <fontmetrics.scad>
 
 $fn=45;
 
-label("10kΩ 0603", "Arial", 5, .75);
+label("CH32V003J4M6", "Arial", 5, .75);
 
 translate([0,10,0])
-label("10", "Arial:style=Bold", 5, 1);
+label("89", "Arial:style=Bold", 5, 1);
 
 module label(t, f, h, xc)
 {

smd_magazine.scad

@@ -1,5 +1,5 @@
 // tape dimensions and tolerance
-tape_width=16;
+tape_width=12;
 tape_thickness=2.5;
 tolerance=0.4;