docs: Add readme for subject concatenate

2022-06-29 11:49:23 +01:00 · 2022-06-29 11:49:23 +01:00 · f8b2b6aed0
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+## concatenate
+
+### Instructions
+
+Write a program that displays all the arguments as a single string. If there are not enough arguments it should display a new line.
+
+### Usage
+
+```console
+$ go run . hello there chris | cat -e
+hellotherechris$
+$ go run . a b c d| cat -e
+abcd$
+```