README.md in trackler-2.2.1.104

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+# Armstrong Numbers
+
 An [Armstrong number](https://en.wikipedia.org/wiki/Narcissistic_number) is a number that is the sum of its own digits each raised to the power of the number of digits.
 
 For example:
 
 - 9 is an Armstrong number, because `9 = 9^1 = 9`
 - 10 is *not* an Armstrong number, because `10 != 1^2 + 0^2 = 2`
 - 153 is an Armstrong number, because: `153 = 1^3 + 5^3 + 3^3 = 1 + 125 + 27 = 153`
 - 154 is *not* an Armstrong number, because: `154 != 1^3 + 5^3 + 4^3 = 1 + 125 + 64 = 190`
 
-Write some code to determine whether a number is an Armstrong number.
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+Write some code to determine whether a number is an Armstrong number.
+
+### Submitting Exercises
+
+Note that, when trying to submit an exercise, make sure the exercise file that you're submitting is in the `exercism/csharp/armstrong-numbers` directory.
+
+## Source
+
+Wikipedia [https://en.wikipedia.org/wiki/Narcissistic_number](https://en.wikipedia.org/wiki/Narcissistic_number)
+
+## Submitting Incomplete Solutions
+It's possible to submit an incomplete solution so you can see how others have completed the exercise.