Typo fixes, added line to MGLStyleLayer initializer description (#7759)

* Typo fixes in MGLMapCamera.h and MGLMapView.h

* Added line to MGLStyleLayer initializer description

* Edited line in MGLShapeCollection.h

4 files changed, 10 insertions, 5 deletions

diff --git a/platform/darwin/src/MGLMapCamera.h b/platform/darwin/src/MGLMapCamera.h
index f6bff36280..abb43d9aea 100644
--- a/platform/darwin/src/MGLMapCamera.h
+++ b/platform/darwin/src/MGLMapCamera.h
@@ -29,7 +29,7 @@ NS_ASSUME_NONNULL_BEGIN
 + (instancetype)camera;
 
 /**
- Returns a new camera using based on information about the camera’s viewpoint
+ Returns a new camera based on information about the camera’s viewpoint
  and focus point.
  
  @param centerCoordinate The geographic coordinate on which the map should be
diff --git a/platform/darwin/src/MGLShapeCollection.h b/platform/darwin/src/MGLShapeCollection.h
index 01aece824f..b0f3e964d4 100644
--- a/platform/darwin/src/MGLShapeCollection.h
+++ b/platform/darwin/src/MGLShapeCollection.h
@@ -28,8 +28,8 @@ NS_ASSUME_NONNULL_BEGIN
  convenient to use an `MGLPointCollection`, `MGLMultiPolyline`, or
  `MGLMultiPolygon` object, respectively.
  
- A multipolyline is known as a
- <a href="https://tools.ietf.org/html/rfc7946#section-3.1.8">GeometryCollection</a>
+ A shape collection is known as a 
+ <a href="https://tools.ietf.org/html/rfc7946#section-3.1.8">GeometryCollection</a> 
  geometry in GeoJSON.
  */
 @interface MGLShapeCollection : MGLShape
diff --git a/platform/darwin/src/MGLStyleLayer.h b/platform/darwin/src/MGLStyleLayer.h
index 4032be9297..a91ac11c2d 100644
--- a/platform/darwin/src/MGLStyleLayer.h
+++ b/platform/darwin/src/MGLStyleLayer.h
@@ -27,9 +27,14 @@ NS_ASSUME_NONNULL_BEGIN
 /**
  Returns a style layer object initialized with the given identifier.
  
+ The default implementation of this initializer in MGLStyleLayer creates an
+ invalid style layer. Call this initializer on `MGLBackgroundStyleLayer` or one of
+ the concrete subclasses of `MGLForegroundStyleLayer` to create a valid style
+ layer.
+ 
  After initializing and configuring the style layer, add it to a map view’s
  style using the `-[MGLStyle addLayer:]` or
- `-[MGLStyle insertLayer:belowLayer:]` method.
+ `-[MGLStyle insertLayer:belowLayer:]` method. 
  
  @param identifier A string that uniquely identifies the layer in the style to
     which it is added.
diff --git a/platform/ios/src/MGLMapView.h b/platform/ios/src/MGLMapView.h
index 62f053e96b..715f3338c3 100644
--- a/platform/ios/src/MGLMapView.h
+++ b/platform/ios/src/MGLMapView.h
@@ -28,7 +28,7 @@ extern const CGFloat MGLMapViewDecelerationRateNormal;
 /** A fast deceleration rate for a map view. */
 extern const CGFloat MGLMapViewDecelerationRateFast;
 
-/** Disables decleration in a map view. */
+/** Disables deceleration in a map view. */
 extern const CGFloat MGLMapViewDecelerationRateImmediate;
 
 /**