Merge pull request #32 from danielpeintner/issue-31

refactor: provide 2 assertion colors depending on dark/light mode

Author: egekorkan

index.html

@@ -57,7 +57,10 @@
     <!-- ASSERTION HIGHLIGHTING -->
     <style>
       .rfc2119-assertion {
-        background-color: rgb(230, 230, 230);
+        background-color: #e6e6e6;
+      }
+      .darkmode .rfc2119-assertion {
+        background-color: #223a2c;
       }
       .at-risk {
         background-color: yellow;