Add reference to settings-file in installation.md

This way new developers will not have to look up this error themselves.

diff --git a/INSTALL.md b/INSTALL.md
index 2b1b4b5dead268f05bda85a3004a153fdbf1ac64..cdf3bc55654dcdbf6b665e7901e833130c287e48 100644 (file)
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -124,6 +124,14 @@ We use [Yarn](https://yarnpkg.com/) to manage the Node.js modules required for t
 bundle exec rake yarn:install
 ```
 
+## Prepare local settings file
+
+This is a workaround. [See issues/2185 for details](https://github.com/openstreetmap/openstreetmap-website/issues/2185#issuecomment-508676026).
+
+```
+touch config/settings.local.yml
+```
+
 ## Storage setup
 
 The Rails port needs to be configured with an object storage facility - for