Show a bool as true or false, and make the examples' flags bools

aup and Pure now have a bool (Pure 016): a view or column may be one.
vega_text writes it as true or false, as a string's interpolation does, so
every surface shows the same words: the CLI, the TUI's cells, speech and
the web surface's JSON (a value's text) and page. An app that wants other
words picks them with a conditional (if t.done { "done" } else { "" }).

The flags of the examples are bools: todo's done and urgent, today's done,
the stopwatch's running. vega.when takes the bool as it took the number.

bools checks a bool field and a bool column on the CLI, the TUI, speech
and the web surface: true and false, never 1 and 0.

1 files changed, 1 insertions, 1 deletions

diff --git a/examples/stopwatch.aup b/examples/stopwatch.aup
index cd075b0..d5408a0 100644
--- a/examples/stopwatch.aup
+++ b/examples/stopwatch.aup
@@ -6,7 +6,7 @@ record Lap {
   at = 0
 }
 
-state running = 0
+state running = false
 state started = 0
 state elapsed = 0
 state laps: list of Lap