Merge pull request #1 from xanni/patch-3

Update instructions.append.md

Author: xanni

exercises/practice/square-root/.docs/instructions.append.md

@@ -6,9 +6,7 @@
 Python offers a wealth of mathematical functions in the form of the [math module][math-module] and built-ins such as the exponentiation operator `**`, [`pow()`][pow] and [`sum()`][sum].
 However, we'd like you to consider the challenge of solving this exercise without those built-ins or modules.
 
-While there is a mathematical formula that will find the square root of _any_ number, we have gone the route of having only [natural numbers][nautral-number] (positive integers) as solutions.  
-It is possible to compute the square root of any natural number using only natural numbers in the computation.
-
+While there is a mathematical formula that will find the square root of _any_ number, we have gone the route of having only [natural numbers][nautral-number] (positive integers) as solutions.
 
 [math-module]: https://docs.python.org/3/library/math.html
 [pow]: https://docs.python.org/3/library/functions.html#pow