USDT is common many exchanges and treated as a currency.
It is helpful to allow USDT to be accepted as a fiat current when testing config.json
By way of example of a usecase
A strategy or otherwise report may not query: config['stake_currency'] and currency = config['fiat_display_currency']
as the config.json with fail test, so cannot build a base/pair such as BTC/USDT that is valid will not be built cleanly.
Pulling BTC/USDT from config values can be useful to download query ticker file name and data, enumerating base/pair price to whitelist target pairs, performing correlation coefficient statistics etc.
As example: building a dataframe such as here
date BTC/USDT ETH/BTC XLM/BTC LTC/BTC
0 1517443200 10283.00 0.109475 0.000052 0.016031
The transposing to actual USDT ticker value row-wise per pair
date BTC/USDT ETH/USD XLM/USD LTC/USD
1517443200 10283.00 1125.731425 0.535950 164.846773
Correct instructions for calling a custom strategy file
To paraphrase the change:
Prior - to call a custom strategy -s the strategy file name within users_data/strategies/ directory
After - to call a custom strategy -s the class name within the strategy within users_data/strategies/ directory
Corrected instructions, to paraphrase the PR
prior - to call a custom strategy -s the custom strategy file name in user_data/strategies
after - to call a custom strategy -s the class name within the custom strategy file name in user_data/strategies
New versions of Docker will not start in OSX using the cmd in these instructions as /etc/localtime cannot be mounted.
The change provides an alternate command that does work.
`docker run --rm -e TZ=`ls -la /etc/localtime | cut -d/ -f8-9` -v `pwd`/config.json:/freqtrade/config.json -it freqtrade`
More info is in this thread:
https://github.com/docker/for-mac/issues/2396
Before this commit, during setup, even a default value is displayed for some config, if user doesn't enter anything, an empty value is applied.
After this commit, if user doesn't enter anything for a config with default value, the default value will be applied.
