Update README.md

Author: MrRedBeard

README.md

@@ -5,7 +5,7 @@ Vector Graphics for Process Map Diagrams/Symbols
 ![Poster](Process-Map-Symbols.png?raw=true "Process Map Symbols Poster")
 
 ## Vector Graphics in PowerPoint (actual shapes)
-![PowerPoint](Process-Map-Symbols.png?raw=true "PowerPoint ScreenShot")
+![PowerPoint](PowerPoint-ScreenShot.png?raw=true "PowerPoint ScreenShot")
 
 ## Scripts
 - pngConvert.bat is for converting svgs to pngs using inkscape CLI