Add imports to some documentation (#7)

Author: MartinSStewart

README.md

@@ -9,6 +9,11 @@ See some examples here: https://elm-simple-animation-examples.surge.sh/
 Animate HTML, SVG (or any UI Elements) with declarative animations
 
 ```elm
+import Html exposing (Html)
+import Simple.Animated as Animated
+import Simple.Animation as Animation exposing (Animation)
+import Simple.Animation.Property as P
+
 animatedDot : Html msg
 animatedDot =
     Animated.div expandFade [ class "dot" ] []

src/Simple/Animated.elm

@@ -53,6 +53,11 @@ import Internal.Animation as Animation exposing (Animation)
 
 ### Render an Animated `div`
 
+    import Html exposing (Html)
+    import Simple.Animated as Animated
+    import Simple.Animation as Animation exposing (Animation)
+    import Simple.Animation.Property as P
+
     dot : Html msg
     dot =
         Animated.div expandFade [ class "dot" ] []

src/Simple/Animation.elm

@@ -95,6 +95,9 @@ type Step
 
 {-| Create an animation with `start` and `end` properties:
 
+    import Simple.Animation as Animation exposing (Animation)
+    import Simple.Animation.Property as P
+
     fadeOut : Animation
     fadeOut =
         Animation.fromTo
@@ -122,6 +125,9 @@ fromTo o from_ to_ =
 
 {-| Create an animation with multiple steps:
 
+    import Simple.Animation as Animation exposing (Animation)
+    import Simple.Animation.Property as P
+
     backAndForth : Animation
     backAndForth =
         Animation.steps
@@ -182,6 +188,9 @@ wait =
 
 This animation will `wait` for `1500` milliseconds before animating to the next step
 
+    import Simple.Animation as Animation exposing (Animation)
+    import Simple.Animation.Property as P
+
     finishAfterFadeOut : Animation
     finishAfterFadeOut =
         Animation.steps