docs: add exchange overview

Author: xmatthias

docs/exchanges.md

@@ -2,6 +2,10 @@
 
 This page combines common gotchas and Information which are exchange-specific and most likely don't apply to other exchanges.
 
+## Quick overview of supported exchange features
+
+--8<-- "includes/exchange-features.md"
+
 ## Exchange configuration
 
 Freqtrade is based on [CCXT library](https://github.com/ccxt/ccxt) that supports over 100 cryptocurrency

docs/includes/exchange-features.md

@@ -0,0 +1,19 @@
+
+| Exchange | Mode | Margin mode | Stoploss on exchange | 
+|---------|---------|------|------------------|
+| [Binance](exchanges.md#binance) | spot | | yes |
+| [Binance](exchanges.md#binance) | futures | isolated, cross | yes |
+| [Bingx](exchanges.md#bingx) | spot | | yes |
+| [Bitmart](exchanges.md#bitmart) | spot | | no |
+| [Bybit](exchanges.md#bybit) | spot | | yes |
+| [Bybit](exchanges.md#bybit) | futures | isolated | yes |
+| [Gate.io](exchanges.md#gateio) | spot | | yes |
+| [Gate.io](exchanges.md#gateio) | futures | isolated | yes |
+| [HTX](exchanges.md#htx) | spot | | yes |
+| [Hyperliquid](exchanges.md#hyperliquid) | spot | | no |
+| [Hyperliquid](exchanges.md#hyperliquid) | futures | isolated | yes |
+| [Kraken](exchanges.md#kraken) | spot | | yes |
+| [OKX](exchanges.md#okx) | spot | | yes |
+| [OKX](exchanges.md#okx) | futures | isolated | yes |
+| [Bitvavo](exchanges.md#bitvavo) | spot | | yes |
+| [Kucoin](exchanges.md#kucoin) | spot | | yes |