Merge pull request #813 from jannepeltola/bugfix/issue-812-ls-to-wc

Fix typo: ls -> wc

src/cmdstan-guide/installation.qmd

@@ -228,7 +228,7 @@ On Linux and macOS:
 
 # default output written to file `output.csv`,
 # default num_samples is 1000, output file should have approx. 1050 lines
-> ls -l output.csv
+> wc -l output.csv
 
 # run the `bin/stansummary utility to summarize parameter estimates
 > bin/stansummary output.csv