Clarify documentation of square root example (#51)

dleve123 · AdrianRaFo · commit 64cd9b93f2ac · 2019-03-15T21:07:48.000+01:00
Explicitly call out that that we're evaluating the square root of 2 in example
of applying Newton's method.
diff --git a/src/main/scala/scalatutorial/sections/FunctionalLoops.scala b/src/main/scala/scalatutorial/sections/FunctionalLoops.scala
@@ -76,7 +76,7 @@ object FunctionalLoops extends ScalaTutorialSection {
    *  - Start with an initial ''estimate'' `y` (let's pick `y = 1`).
    *  - Repeatedly improve the estimate by taking the mean of `y` and `x/y`.
    *
-   * Example:
+   * Example: Evaluation of the square root of 2 (x = 2):
    *
    * {{{
    *   Estimation          Quotient              Mean

Original file line number	Diff line number	Diff line change
`@@ -76,7 +76,7 @@ object FunctionalLoops extends ScalaTutorialSection {`
`76`	`76`	* - Start with an initial ''estimate'' `y` (let's pick `y = 1`).
`77`	`77`	* - Repeatedly improve the estimate by taking the mean of `y` and `x/y`.
`78`	`78`	`*`
`79`		`- * Example:`
	`79`	`+ * Example: Evaluation of the square root of 2 (x = 2):`
`80`	`80`	`*`
`81`	`81`	`* {{{`
`82`	`82`	`* Estimation Quotient Mean`