workaround TOML line break bug in Hugo v0.53

See #852

exampleSite/config.toml

@@ -66,8 +66,8 @@ enableGitInfo = false
   email = "test@example.org"
   address = "Building 1 Room 1, Stanford University, California, 90210, USA"
   office_hours = """
-  Monday 10:00 to 13:00\\
-  Wednesday 09:00 to 10:00\\
+  Monday 10:00 to 13:00<br>
+  Wednesday 09:00 to 10:00<br>
   Otherwise email to book an appointment
   """
   phone = "888 888 88 88"