From 0b44f5ba7f94f315cf7aaac7f9bda65d8df75891 Mon Sep 17 00:00:00 2001
From: Flo <max06.net@outlook.com>
Date: Tue, 27 Dec 2022 17:56:44 +0100
Subject: [PATCH] docs(collections): Add warning about mandatory `_`-prefix
 (#1091)

* docs(collections): Add warning about mandatory `_`-prefix

* Apply recommended wording
---
 docs/configuration.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/docs/configuration.md b/docs/configuration.md
index c5c35ae5..6892ba44 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -233,6 +233,9 @@ ga_tracking: "UA-1234567-89,G-1AB234CDE5"
 By default, the navigation and search include normal [pages](https://jekyllrb.com/docs/pages/).
 You can also use [Jekyll collections](https://jekyllrb.com/docs/collections/) which group documents semantically together.
 
+{: .warning }
+> Collection folders always start with an underscore (`_`), e.g. `_tests`. You won't see your collections if you omit the prefix.
+
 For example, put all your test files in the `_tests` folder and create the `tests` collection:
 
 ```yaml
-- 
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