Add training workflow, datasets, and runbook

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+O,apter 6: Ratio Call Writing 171 
+prices only, however, he should attempt to build some screens into his output to allow 
+for the fact that last sale prices might not be indicative of the price at which the 
+spread can be executed. One simple method for screening is to look only at relative­
+ly liquid options - that is, those that have traded a substantial number of contracts 
+during the previous trading day. If an option is experiencing a great deal of trading 
+activity, there is a much better chance that the current quote is "tight," meaning that 
+the bid and offering prices are quite close to the last sale price. 
+In the early days of listed options, it was somewhat common practice to "leg" 
+into a spread. That is, the strategist would place separate buy and sell orders for the 
+two transactions comprising his spread. As the listed markets have developed, adding 
+depth and liquidity, it is generally a poor idea to leg into a spread. If the floor broker 
+handling the transaction knows the entire transaction, he has a much better chance 
+of "splitting a quote," buying on the bid, or selling on the offering. Splitting a quote 
+merely means executing at a price that is between the current bid and asked prices. 
+For example, if the bid is 37/s and the offering is 41/s, a transaction at a price of 4 
+would be "splitting the quote." 
+The public customer must be aware that spread transactions may involve sub­
+stantially higher commission costs, because there are twice as many calls involved in 
+any one transaction. Some brokers offer slightly lower rates for spread transactions, 
+but these are not nearly as low as spreads in commodity trading, for example.