docs: fix performance benchmark script paths

docs/benchmarks/performance/README.md

@@ -7,7 +7,7 @@ the on-disk and one-turn tables there came from other means, and `METHOD-REVIEW.
 records what is and is not documented about them.
 
 ```bash
-WORKDIR=$PWD docs/benchmarks/measure-cli.sh codeaf /tmp/bench-home/codeaf ./bin/codeaf chat
+WORKDIR=$PWD docs/benchmarks/performance/measure-cli.sh codeaf /tmp/bench-home/codeaf ./bin/codeaf chat
 ```
 
 Run it once per CLI, on the same machine, in the same working directory, within the same

docs/benchmarks/performance/measure-cli.sh

@@ -5,7 +5,7 @@
 #
 # From the root of a real repository:
 #
-#   WORKDIR=$PWD docs/benchmarks/measure-cli.sh mine /tmp/bench-home/mine bin/mine chat
+#   WORKDIR=$PWD docs/benchmarks/performance/measure-cli.sh mine /tmp/bench-home/mine bin/mine chat
 #
 # <name> only labels the output, the tmux session and the run; nothing about the
 # CLI is inferred from it. <home> is the profile the CLI runs under — an

docs/changes/unreleased/1536-performance-benchmark-script-path.md

@@ -0,0 +1,11 @@
+---
+kind: fixed
+title: Performance benchmark examples use the script's real path
+pr: 1536
+surface: [docs]
+invalidates:
+  - "The benchmark examples pointed to docs/benchmarks/measure-cli.sh, which does not exist. The script lives under docs/benchmarks/performance/measure-cli.sh."
+---
+
+The performance benchmark README and the script's own usage example now resolve
+the executable from the repository root.