fix quarto-cli/issues/10072

(cherry picked from commit ef46668)

docs/troubleshooting/index.qmd

@@ -105,7 +105,7 @@ If `$XDG_DATA_HOME` is set, `${XDG_DATA_HOME}/.local/share/quarto/logs`, otherwi
 
 ### Out-of-memory issues
 
-When building a large project or website, you might run into memory limits. In that case, consider the following environment variable.
+When building a large project or website, you might run into memory limits. In that case, consider adjusting the `QUARTO_DENO_V8_OPTIONS` environment variable.
 
 In this example, we're setting the maximum amount of memory to be allocated by Deno to be 8GB. Adjust this to your computer's limits.
 
@@ -116,15 +116,15 @@ In this example, we're setting the maximum amount of memory to be allocated by D
 On PowerShell:
 
 ```powershell
-$env:QUARTO_DENO_EXTRA_OPTIONS = "--v8-flags=--max-old-space-size=8192"
+$env:QUARTO_DENO_V8_OPTIONS = "--max-old-space-size=8192"
 ```
 
 ## Unix
 
 On bash-like shells:
 
 ```bash
-export QUARTO_DENO_EXTRA_OPTIONS=--v8-flags=--max-old-space-size=8192
+export QUARTO_DENO_V8_OPTIONS=--max-old-space-size=8192
 ```
 
 :::