add forgotton quote mark

Author: tomeichlersmith

src/using/analysis/ldmx-sw.md

@@ -55,7 +55,7 @@ are located.
 {{#include ana-cfg.py}}
 ```
 
-~~~admonish warning title="Prior ldmx-sw Versions
+~~~admonish warning title="Prior ldmx-sw Versions"
 If you are using ldmx-sw < v4.7.0 (but >= v4.0.1), then the `processor_from_file` function
 was named `Analyzer.from_file` but otherwise works the same.
 ~~~