update docs

Author: hitblast

book/src/usage/remote-config-and-sync.md

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+# Remote Config & Sync
+
+cutler features a simple built-in remote sync logic. For example, if you want to apply a config from a given URL without placing it manually on your machine, simply use the following command:
+
+```sh
+cutler apply --url https://example.com/config.toml
+```
+
+cutler will then download and validate the config file, and if all looks good, it will be loaded to be applied.
+
+You can also use this functionality on your "existing" configurations, by utilizing the `[remote]` table:
+
+```toml
+[remote]
+url = "https://example.com/config.toml"
+autosync = true
+```
+
+Here, the `autosync` flag will ensure that the next time you run any command except the [disabled commands](#disabled-commands), it will automatically fetch the config file beforehand from the provided remote.
+
+Or, you can simply fetch from the config URL written in `[remote]` manually using the `fetch` command:
+
+```sh
+cutler fetch
+```
+
+In order to disable remote sync behavior while running any command, use the `--no-sync` global flag:
+
+```sh
+cutler status --no-sync
+```
+
+## Disabled Commands
+
+Some commands will not respect `autosync = true` and therefore NOT synchronize the config automatically:
+
+- `fetch`
+- `brew backup`
+- `self-update`
+- `check-update`
+- `cookbook`
+- `completion`
+- `init`
+- `reset`
+- `config`