adds a transcript that outputs the edit.namespace output for base…

… and `http`

unison-src/transcripts/pretty-print-libraries.md

@@ -0,0 +1,13 @@
+This transcript is to detect changes in the pretty-printer for a few major public libraries.
+
+We clone releases and not dev branches to avoid external changes, and also to reduce the time needed to clone the libraries.
+
+```ucm
+scratch/main> clone @unison/base/releases/3.19.0
+@unison/base/releases/3.19.0> edit.namespace
+```
+
+```ucm
+scratch/main> clone @unison/http/releases/3.3.2
+@unison/http/releases/3.3.2> edit.namespace
+```