Added Lots of Documentation

Added some nice to haves
Improved and Unified General Code Layout

MathKit/MPExpressionStorage.m

@@ -9,17 +9,22 @@
 #import "MPExpressionStorage.h"
 
 #import "MPExpressionView.h"
-#import "MPLayout.h"
 #import "MPExpressionLayout.h"
 
 #import "MPRangePath.h"
 
+
+
 @interface MPExpressionStorage ()
+
 @property (nonatomic, strong) NSLayoutManager *layoutManager;
 @property (nonatomic, strong) NSTextContainer *textContainer;
 @property (nonatomic, strong) NSTextStorage *textStorage;
+
 @end
 
+
+
 @implementation MPExpressionStorage
 
 - (instancetype)initWithElements:(NSArray *)elements
@@ -31,6 +36,7 @@
     return self;
 }
 
+
 - (void)setExpressionView:(MPExpressionView *)expressionView
 {
     _expressionView = expressionView;
@@ -38,6 +44,7 @@
     self.rootLayout.flipped = expressionView.flipped;
 }
 
+
 - (void)changedElementsInRangePath:(MPRangePath *)rangePath
                    replacementLength:(NSUInteger)replacementLength
 {