Adjust compiler flags slide

lectures/debugging-strategies/slides.qmd

@@ -455,8 +455,9 @@ In the Fortran world, also
 
 ## Compiler flags for run-time output (2/2) {.leftalign}
 
-For Fortran programs try with more than just one compiler.
-HPC systems usally provide native compiler plus gcc/gfortan. Try both variants.
+Try with more than just one compiler
+
+$\Rightarrow$ HPC systems usally provide native compiler plus gcc/gfortan. Try both variants.
 
 
 ## Compiler flags example