testing title change

Author: guptaharshul24

_config.yml

@@ -11,7 +11,7 @@
 carpentry: "swc"
 
 # Overall title for pages.
-title: "CMSDAS: Measurement of B0s→μ+μ− Long Exercise"
+title: "CMSDAS: Measurement of B<sup>0</sup><sub>s</sub>→μ<sup>+</sup>μ<sup>−</sup> Long Exercise"
 
 # Life cycle stage of the lesson
 # See this page for more details: https://cdh.carpentries.org/the-lesson-life-cycle.html