Update README.md

README.md

 codeseries
 ==========
+Lock Combination Generator
+A lock combination manufacturer needs to maintain a database of all
+possible combinations for their locks. You are tasked with writing a
+program that generates all possible legal combinations within the rules
+set by the manufacturer.
+
+Rules
+- Values for a position: A,B,C,D,E
+- Number of positions: 6
+- Adjacent positions cannot differ by more than 2 (AC and BD are
+valid adjacent positions; AD is not)
+- No more than 3 contiguous positions can have the same value (AAA is
+OK, AAAA is not)
+- No more than 4 of the same value can be in a combination (AABBAA is
+OK, AAABAA is not)
+
+The manufacturer wants to allow for future expansion, so the number and
+values of positions must be configurable. (So, your program should be
+able to handle values up to A-Z, and it should be able to handle 8
+positions, or 10, or even more.) The manufacturer will assign a lookup
+code (starting with 1 and incrementing) to each combination. However,
+the collection of combinations needs to be randomly shuffled before
+assigning the lookup codes to them. The output should look something
+like this:
+
+1: ABABAC
+2: CDCDCA
+3: ABCDEA
+...
+
+When writing your code, be sure to utilize proper object-oriented
+techniques and design. Show appropriate use of class construction.