docs: warn about possible lost of customization

meleu

2022-04-04 3583265f80afa081bf7a1fe996a9b3fe3c4e32e0

 config.toml

@@ -2,7 +2,7 @@
languageCode = "en-us"
googleAnalytics = "G-XYFD95KB4J"
pygmentsUseClasses = true
relativeURLs = true
relativeURLs = false
disablePathToLower = true
ignoreFiles = [
    "/content/templates/*",