Trailing whitespaces

Signed-off-by: Gabriel Caruso <carusogabriel34@gmail.com>

CHANGELOG.md

@@ -19,7 +19,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ### Added
 
 - Support to write merged cells in ODS format - [#287](https://github.com/PHPOffice/PhpSpreadsheet/issues/287)
-- Able to set the `topLeftCell` in freeze panes - [#261](https://github.com/PHPOffice/PhpSpreadsheet/pull/261) 
+- Able to set the `topLeftCell` in freeze panes - [#261](https://github.com/PHPOffice/PhpSpreadsheet/pull/261)
 - Support `DateTimeImmutable` as cell value
 - Support migration of prefixed classes
 
@@ -64,12 +64,12 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - Easier usage of chart renderers, see the [migration guide](./docs/topics/migration-from-PHPExcel.md).
 - Rename a few more classes to keep them in their related namespaces:
     - `CalcEngine` => `Calculation\Engine`
-    - `PhpSpreadsheet\Calculation` => `PhpSpreadsheet\Calculation\Calculation` 
-    - `PhpSpreadsheet\Cell` => `PhpSpreadsheet\Cell\Cell` 
-    - `PhpSpreadsheet\Chart` => `PhpSpreadsheet\Chart\Chart` 
-    - `PhpSpreadsheet\RichText` => `PhpSpreadsheet\RichText\RichText` 
-    - `PhpSpreadsheet\Style` => `PhpSpreadsheet\Style\Style` 
-    - `PhpSpreadsheet\Worksheet` => `PhpSpreadsheet\Worksheet\Worksheet` 
+    - `PhpSpreadsheet\Calculation` => `PhpSpreadsheet\Calculation\Calculation`
+    - `PhpSpreadsheet\Cell` => `PhpSpreadsheet\Cell\Cell`
+    - `PhpSpreadsheet\Chart` => `PhpSpreadsheet\Chart\Chart`
+    - `PhpSpreadsheet\RichText` => `PhpSpreadsheet\RichText\RichText`
+    - `PhpSpreadsheet\Style` => `PhpSpreadsheet\Style\Style`
+    - `PhpSpreadsheet\Worksheet` => `PhpSpreadsheet\Worksheet\Worksheet`
 
 ## [1.0.0-beta] - 2017-08-17
 

docs/topics/file-formats.md

@@ -11,7 +11,7 @@ Currently, PhpSpreadsheet supports the following File Types for Reading:
 ### Xls
 
 The Microsoft Excel™ Binary file format (BIFF5 and BIFF8) is a binary
-file format that was used by Microsoft Excel™ between versions 95 and 2003. 
+file format that was used by Microsoft Excel™ between versions 95 and 2003.
 The format is supported (to various extents) by most spreadsheet
 programs. BIFF files normally have an extension of .xls. Documentation
 describing the format can be [read online](https://msdn.microsoft.com/en-us/library/cc313154(v=office.12).aspx)

docs/topics/migration-from-PHPExcel.md

@@ -29,7 +29,7 @@ In addition to automated changes, a few things need to be migrated manually.
 When using `IOFactory::createReader()`, `IOFactory::createWriter()` and
 `IOFactory::identify()`, the reader/writer short names are used. Those were
 changed, along as their corresponding class, to remove ambiguity:
-            
+
 Before           | After
 -----------------|---------
 `'CSV'`          | `'Csv'`
@@ -206,7 +206,7 @@ JpGraph support is still available, it is unfortunately not up to date for lates
 and it will generate various warnings.
 
 If you rely on this feature, please consider
-contributing either patches to JpGraph or another `IRenderer` implementation (a good 
+contributing either patches to JpGraph or another `IRenderer` implementation (a good
 candidate might be [CpChart](https://github.com/szymach/c-pchart)).
 
 Before:
@@ -216,7 +216,7 @@ $rendererName = \PHPExcel_Settings::CHART_RENDERER_JPGRAPH;
 $rendererLibrary = 'jpgraph3.5.0b1/src/';
 $rendererLibraryPath = '/php/libraries/Charts/' . $rendererLibrary;
 
-\PHPExcel_Settings::setChartRenderer($rendererName, $rendererLibraryPath); 
+\PHPExcel_Settings::setChartRenderer($rendererName, $rendererLibraryPath);
 ```
 
 After:

docs/topics/reading-and-writing-to-file.md

@@ -793,9 +793,9 @@ class My_Custom_TCPDF_Writer extends \PhpOffice\PhpSpreadsheet\Writer\Pdf\Tcpdf
 	protected function createExternalWriterInstance($orientation, $unit, $paperSize)
 	{
 		$instance = new My_Custom_TCPDF($orientation, $unit, $paperSize);
-		
+
 		// more configuration of $instance
-		
+
 		return $instance;
 	}
 }