Merge pull request #1099 from dshomoye/patch-1

add line height as customizable variable.

Author: peterpeterparker

webcomponents/highlight-code/src/components/highlight-code/deckdeckgo-highlight-code.scss

@@ -102,6 +102,7 @@ div.deckgo-highlight-code-container {
 
     font-size: var(--deckgo-highlight-code-font-size);
     font-family: var(--deckgo-highlight-code-font-family, monospace);
+    line-height: var(--deckgo-highlight-code-line-height);
 
     display: var(--deckgo-highlight-code-display, block);