Merge pull request #668 from mindline-analytics/fix-docs-misc

Fixed docs image paths/ corrected typo

Author: Progi1984

docs/usage/presentation.md

@@ -177,7 +177,7 @@ $state = $presentation->isMarkedAsFinal();
 
 You can define the type of slideshow you can with the method `setSlideshowType`.
 
-![Slideshow type](/images/presentation_slideshow_type.png)
+![Slideshow type](../images/presentation_slideshow_type.png)
 
 Differents types are available:
 

docs/usage/shapes/chart.md

@@ -374,7 +374,7 @@ $barChart->setBarGrouping(Bar::GROUPING_PERCENTSTACKED);
 | --------------------------------------------------------------------------- | ------------ | ---------------------------- |
 | ![Bar::GROUPING_CLUSTERED](../../images/chart_columns_52x60.png)            | Grouped Bars | Bar::GROUPING_CLUSTERED      |
 | ![Bar::GROUPING_STACKED](../../images/chart_columnstack_52x60.png)          | Stacked Bars | Bar::GROUPING_STACKED        |
-| ![Bar::GROUPING_PERCENTSTACKED](../../images/chart_columnpercent_52x60.png) | Grouped Bars | Bar::GROUPING_PERCENTSTACKED |
+| ![Bar::GROUPING_PERCENTSTACKED](../../images/chart_columnpercent_52x60.png) | Stacked Bars 100% | Bar::GROUPING_PERCENTSTACKED |
 
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