blampe
diff --git a/‎README.md
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diff --git a/‎examples/circuits.svg
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diff --git a/‎examples/complicated.svg
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diff --git a/‎examples/dot-grids.svg
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diff --git a/‎examples/edge-cases.svg
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@@ -1,4 +1,21 @@
 # GoAT: Go ASCII Tool
+<!--
+  NOTE to maintainers
+  ---
+    SVG examples/ regeneration.
+       go test -run . -v -write
+
+    Github home page README.md, specific to $USER:
+       sed "s,{{\.Root}},https://cdn.rawgit.com/${USER}/goat/main," README.md.tmpl >README.md
+
+    Local preview of home page:
+       sed "s,https://cdn.rawgit.com/blampe/goat/main,.," README.md.tmpl >README.md
+       # See https://github.github.com/gfm/#introduction
+       (echo '<!DOCTYPE html>'; marked -gfm README.md) >README.html
+
+    The @media query from SVG may be verified in Firefox by switching between Themes
+    "Light" and "Dark" in Firefox's "Add-ons Manager".
+ -->
 
 This is a Go implementation of [markdeep.mini.js]'s ASCII diagram
 generation.
@@ -46,7 +63,7 @@ By default, it writes in [SVG] format, unless another format is specified with
 
 ## Examples
 
-Here are some SVGs and the ASCII input they were generated from:
+Here are some SVGs and the UTF-8 input they were generated from:
 
 ### Trees
 
@@ -118,6 +135,7 @@ Here are some SVGs and the ASCII input they were generated from:
   o o o o o  * * * * *  o * o o o   o o o o    * * * *    o * o o    · · · · o    · · * ·
   o o o o o  * * * * *  * * * * o    o o o      * * *      o * o     · · · · ·     · · *
 ```
+Note that '·' above is not ASCII, but rather Unicode, the MIDDLE DOT character, encoded with UTF-8.
 
 ### Large Nodes