Describe the naming for the function it()

When I first saw it(), I was wondering if the name "it" is
an abbreviation of anything. After some search, I finally
realized that the name is only a pronoun. Therefore, I
think it's worthwhile to include it in the documentation.

src/core/requireInterface.js

@@ -60,6 +60,9 @@ getJasmineRequireObj().interface = function(jasmine, env) {
      * Define a single spec. A spec should contain one or more {@link expect|expectations} that test the state of the code.
      *
      * A spec whose expectations all succeed will be passing and a spec with any failures will fail.
+     * The name `it` is a pronoun for the test target, not an abbreviation of anything. It makes the
+     * spec more readable by connecting the function name `it` and the argument `description` as a
+     * complete sentence.
      * @name it
      * @since 1.3.0
      * @function