[cli] Add example config file

cli/config.yaml.example

@@ -0,0 +1,10 @@
+# You can put this configuration file in the following locations:
+# - $HOME/.ente/config.yaml
+# - config.yaml in the current working directory
+# - $ENTE_CLI_CONFIG_PATH/config.yaml
+
+endpoint:
+  api: "https://api.ente.io"
+
+log:
+ http: false # log http requests and responses