Update README.md

Signed-off-by: John Mertic <[email protected]>

overview_deck/README.md

@@ -4,8 +4,4 @@ This directory contains an several of the overview decks for the Open Mainframe
 
 ## Decks available
 
-- "Collaboration and Growth of Open Source Enterprise Computing with Open Mainframe Project" that provides an overview of Open Mainframe Project in [PDF](open_mainframe_project_overview_deck.pdf) and [PPTX](open_mainframe_project_overview_deck.pptx) formats.
-- "Hosting Projects with Open Mainframe Project" that overviews hosting services in [PDF](open_mainframe_project_host_project.pdf) and [PPTX](open_mainframe_project_host_project.pptx) formats.
-- Project overview decks
-  - Zorow overview in [PDF](zorow_overview_deck.pdf) and [PPTX](zorow_overview_deck.pptx) formats.
-  - Zowe overview decks are available in the [Zowe Community Repo](https://github.com/zowe/community/tree/master/ppt_templates)
+- "Open Source is the way forward for mainframe" that provides an overview of Open Mainframe Project in [PDF](open_mainframe_project_overview_deck.pdf) and [PPTX](open_mainframe_project_overview_deck.pptx) formats.