From f5c9279f71f2c82147b53ae94543fec37d30274d Mon Sep 17 00:00:00 2001
From: Claude Meny <claude.meny@irap.omp.eu>
Date: Mon, 18 Jan 2021 13:50:43 +0100
Subject: [PATCH] Update textbook.en.md

---
 .../30.cylindrical-coordinates/10.main/textbook.en.md          | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/12.temporary_ins/05.coordinates-systems/30.cylindrical-coordinates/10.main/textbook.en.md b/12.temporary_ins/05.coordinates-systems/30.cylindrical-coordinates/10.main/textbook.en.md
index 2aa34c7b3..06a977add 100644
--- a/12.temporary_ins/05.coordinates-systems/30.cylindrical-coordinates/10.main/textbook.en.md
+++ b/12.temporary_ins/05.coordinates-systems/30.cylindrical-coordinates/10.main/textbook.en.md
@@ -3,6 +3,9 @@ title: Cylindrical coordinates
 published: true
 routable: false
 visible: false
+lessons:
+    - slug: cylindrical-coordinates-linear
+      order: 1
 ---