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-rw-r--r--doc/contributing/contributing-to-documentation.chapter.md4
1 files changed, 3 insertions, 1 deletions
diff --git a/doc/contributing/contributing-to-documentation.chapter.md b/doc/contributing/contributing-to-documentation.chapter.md
index db16f13b474b8..81482523cd0ec 100644
--- a/doc/contributing/contributing-to-documentation.chapter.md
+++ b/doc/contributing/contributing-to-documentation.chapter.md
@@ -58,8 +58,10 @@ Additional syntax extensions are available, though not all extensions can be use
   A few markups for other kinds of literals are also available:
 
   - `` {command}`rm -rfi` `` turns into {command}`rm -rfi`
-  - `` {option}`networking.useDHCP` `` turns into {option}`networking.useDHCP`
+  - `` {env}`XDG_DATA_DIRS` `` turns into {env}`XDG_DATA_DIRS`
   - `` {file}`/etc/passwd` `` turns into {file}`/etc/passwd`
+  - `` {option}`networking.useDHCP` `` turns into {option}`networking.useDHCP`
+  - `` {var}`/etc/passwd` `` turns into {var}`/etc/passwd`
 
   These literal kinds are used mostly in NixOS option documentation.