various fixes

docs/trading-flow.md

@@ -0,0 +1,15 @@
+
+
+STREAM OF INFORMATION
+
+RETRO > TRAINING
+
+1. SELECT INTSTRUMENT
+2. GET_CANDLES(10000)
+3. RETRO
+
+starting the stream
+1. we received messages
+2. we wait for a window to accumulate
+3. then each message receive, we update the window
+4. and get the answer of the signal