docs: fix a comment naming a function that does not exist

The test comment said "cpu_percent", but the API is new_cpu_counter()
plus :sample(). Prose only, the code was always consistent, but a
comment naming a nonexistent function sends the next reader looking
for it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/docs/superpowers/plans/2026-09-16-conky-lua-dashboard.md b/docs/superpowers/plans/2026-09-16-conky-lua-dashboard.md
index 4289bb1..fee49b4 100644
--- a/docs/superpowers/plans/2026-09-16-conky-lua-dashboard.md
+++ b/docs/superpowers/plans/2026-09-16-conky-lua-dashboard.md
@@ -269,7 +269,7 @@ CPU load is a delta between two readings, so it needs state. This is separate fr
 Append to `test/test_data.lua`, before the final `print`:
 
 ```lua
--- cpu_percent is a delta between two samples, so it holds state.
+-- CPU load is a delta between two samples, so the counter holds state.
 -- The first call has no previous sample and must report nil, not a number:
 -- any number it invented would be wrong, and 100% on startup looks like a
 -- real spike.
diff --git a/test/test_data.lua b/test/test_data.lua
index 44e9ab3..33551d1 100644
--- a/test/test_data.lua
+++ b/test/test_data.lua
@@ -36,7 +36,7 @@ assert(data.millidegrees(nil) == nil, 'nil input must give nil')
 assert(data.millidegrees('') == nil, 'empty input must give nil')
 assert(data.millidegrees('garbage') == nil, 'unparseable input must give nil')
 
--- cpu_percent is a delta between two samples, so it holds state.
+-- CPU load is a delta between two samples, so the counter holds state.
 -- The first call has no previous sample and must report nil, not a number:
 -- any number it invented would be wrong, and 100% on startup looks like a
 -- real spike.