README.md in trackler-2.2.1.104

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 # Nucleotide Count
 
-Given a DNA string, compute how many times each nucleotide occurs in the string.
+Given a single stranded DNA string, compute how many times each nucleotide occurs in the string.
 
-DNA is represented by an alphabet of the following symbols: 'A', 'C',
-'G', and 'T'.
+The genetic language of every living thing on the planet is DNA.
+DNA is a large molecule that is built from an extremely long sequence of individual elements called nucleotides.
+4 types exist in DNA and these differ only slightly and can be represented as the following symbols: 'A' for adenine, 'C' for cytosine, 'G' for guanine, and 'T' thymine.
 
-Each symbol represents a nucleotide, which is a fancy name for the
-particular molecules that happen to make up a large part of DNA.
-
-Shortest intro to biochemistry EVAR:
-
+Here is an analogy:
 - twigs are to birds nests as
-- nucleotides are to DNA and RNA as
-- amino acids are to proteins as
-- sugar is to starch as
-- oh crap lipids
+- nucleotides are to DNA as
+- legos are to lego houses as
+- words are to sentences as...
 
-I'm not going to talk about lipids because they're crazy complex.
-
-So back to nucleotides.
-
-DNA contains four types of them: adenine (`A`), cytosine (`C`), guanine
-(`G`), and thymine (`T`).
-
-RNA contains a slightly different set of nucleotides, but we don't care
-about that for now.
-
 ## Setup
 
 There are two different methods of getting set up to run the tests with Objective-C:
 
 - Create an Xcode project with a test target which will run the tests.
 - Use the ruby gem `objc` as a test runner utility.
 
 Both are described in more detail here: http://exercism.io/languages/objective-c
 
-
 ### Submitting Exercises
 
 When submitting an exercise, make sure your solution file is in the same directory as the test code.
 
-For example, if you're submitting `Bob.m` for the Bob exercise, the submit command would be something like `exercism submit <path_to_exercism_dir>/objective-c/bob/Bob.m`.
+The submit command will look something like:
+
+```shell
+exercism submit <path-to-exercism-workspace>/objective-c/nucleotide-count/NucleotideCount.m
+```
+
+You can find the Exercism workspace by running `exercism debug` and looking for the line beginning
+with Workspace.
 
 ## Source
 
 The Calculating DNA Nucleotides_problem at Rosalind [http://rosalind.info/problems/dna/](http://rosalind.info/problems/dna/)
 