fixup: \tcode{i}

jensmaurer · jensmaurer · commit 74d75beb0d24 · 2021-10-20T17:43:14.000+02:00
diff --git a/source/ranges.tex b/source/ranges.tex
@@ -9162,7 +9162,7 @@
 \pnum
 \ensures
 Each element of \exposid{current_} is equal to \tcode{ranges::next($i$)},
-where $i$ is the value of that element before the call.
+where \tcode{i} is the value of that element before the call.
 
 \pnum
 \returns
