To make your page part of the main navigation bar on the home page, take the following steps:
1) Publish the page in WordPress so it's no longer a draft
2) Go to Appearance > Menus > Select menu to edit: Main Menu
3) Just below in Pages, find the page you created, select: Add to Menu
4) It will show up at the bottom of the Menu structure. Scroll down, then drag it to where you want it. Make sure it is left-aligned with: Home Startup Growth Funding Resources Calendar Blog. Place it wherever in that list that you want it to show up on the main navigation bar. Click 'Save Menu.'