Typo correction in config.example.toml file (#591)

config.example.toml

@@ -69,14 +69,14 @@
 #enable_tlmgr = true
 #emerge_sync_flags = "-q"
 #emerge_update_flags = "-uDNa --with-bdeps=y world"
-#redhat_disrto_sync = false
+#redhat_distro_sync = false
 
 [windows]
 # Manually select Windows updates
 #accept_all_updates = false
 #open_remotes_in_new_terminal = true
 
-# Causes Topgrade to rename itself during the run to allow package managers 
+# Causes Topgrade to rename itself during the run to allow package managers
 # to upgrade it. Use this only if you installed Topgrade by using a package
 # manager such as Scoop to Cargo
 #self_rename = true