Try out a backend readme

piker/brokers/kraken/README.rst

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+``kraken`` backend
+------------------
+though they don't have the most liquidity of all the cexes they sure are
+accommodating to those of us who appreciate a little ``xmr``.
+
+status
+******
+current support is *production grade* and both real-time data and order
+management should be correct and fast. this backend is used by core devs
+for live trading.
+
+
+config
+******
+In order to get order mode support your ``brokers.toml``
+needs to have something like the following:
+
+.. code:: toml
+
+   [kraken]
+   accounts.spot = 'spot'
+   key_descr = "spot"
+   api_key = "69696969696969696696969696969696969696969696969696969696"
+   secret = "BOOBSBOOBSBOOBSBOOBSBOOBSSMBZ69696969696969669969696969696"
+
+
+If everything works correctly you should see any current positions
+loaded in the pps pane on chart load and you should also be able to
+check your trade records in the file::
+
+    <pikerk_conf_dir>/ledgers/trades_kraken_spot.toml