Implement first stop method

docs/includes/protections.md

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+## Protections
+
+Protections will protect your strategy from unexpected events and market conditions.
+
+### Available Protection Handlers
+
+* [`StoplossGuard`](#stoploss-guard) (default, if not configured differently)
+
+#### Stoploss Guard
+
+`StoplossGuard` selects all trades within a `lookback_period` (in minutes), and determines if the amount of trades that resulted in stoploss are above `trade_limit` - in which case it will stop trading until this condition is no longer true.
+
+```json
+"protections": [{
+        "method": "StoplossGuard",
+        "lookback_period": 60,
+        "trade_limit": 4
+}],
+```
+
+!!! Note
+    `StoplossGuard` considers all trades with the results `"stop_loss"` and `"trailing_stop_loss"` if the result was negative.
+
+### Full example of Protections
+
+The below example stops trading if more than 4 stoploss occur within a 1 hour (60 minute) limit.
+
+```json
+"protections": [
+    {
+        "method": "StoplossGuard",
+        "lookback_period": 60,
+        "trade_limit": 4
+    }
+    ],
+```