Update README.md

[knilios]

README.md

• No stupid title lines like “ku-polls”. Should be short and descriptive.
• first section (after title line and badge) describes the app
• “Installation” section contains a link to Installation.md file in the repo
• “Running the Application” or “How to Run” containing steps to run it in a virtual env.
• “Demo Users” (or similar section title) has a table of logins & passwords created by the data fixture
• “Project Documents”
• No colon after section titles ## Running the Application: <--- wrong. No colon after title text.