nixos/prometheus: Correct documentation for external_labels

As description is literal XML, I need to escape < and > by hand.
NixOS · Nov 17, 2017 · 5604007 · 5604007
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commit 5604007
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/nixos/modules/services/monitoring/prometheus/default.nix b/nixos/modules/services/monitoring/prometheus/default.nix
@@ -126,7 +126,7 @@ let
 
           If honor_labels is set to "false", label conflicts are
           resolved by renaming conflicting labels in the scraped data
-          to "exported_<original-label>" (for example
+          to "exported_&lt;original-label&gt;" (for example
           "exported_instance", "exported_job") and then attaching
           server-side labels. This is useful for use cases such as
           federation, where all labels specified in the target should