Links into header, more instructions in body

Author: mishmosh

src/penn_chime/presentation.py

@@ -36,6 +36,10 @@ def display_header(st, m, p):
         """
 <link rel="stylesheet" href="https://www1.pennmedicine.org/styles/shared/penn-medicine-header.css">
 
+    st.markdown(
+        """[Documentation](https://code-for-philly.gitbook.io/chime/) | [Github](https://github.com/CodeForPhilly/chime/) | [Slack](https://codeforphilly.org/chat?channel=covid19-chime-penn)"""
+    )
+
 <div class="penn-medicine-header__content">
     <a href="https://www.pennmedicine.org" class="penn-medicine-header__logo"
         title="Go to the Penn Medicine home page">Penn Medicine</a>
@@ -48,8 +52,7 @@ def display_header(st, m, p):
         """**IMPORTANT NOTICE**: Admissions and Census calculations were previously **undercounting**. Please update your reports generated before """ + p.change_date() + """. See more about changes [here](https://github.com/CodeForPhilly/chime/labels/models)."""
     )
     st.markdown(
-        """*This tool was developed by the [Predictive Healthcare team](http://predictivehealthcare.pennmedicine.org/) at [Penn Medicine](https://www.pennmedicine.org). For questions on how to use this tool see the [User docs](https://code-for-philly.gitbook.io/chime/). Code can be found on [Github](https://github.com/CodeForPhilly/chime).
-    Join our [Slack channel](https://codeforphilly.org/chat?channel=covid19-chime-penn) if you would like to get involved!*"""
+        """*This tool was developed by the [Predictive Healthcare team](http://predictivehealthcare.pennmedicine.org/) at [Penn Medicine](https://www.pennmedicine.org) to assist hospitals and public health officials with hospital capacity planning, but can be used anywhere in the world. Customize it for your region by modifying data inputs in the left pane, or read the [User Documentation](https://code-for-philly.gitbook.io/chime/) to learn more.*"""
     )
 
     st.markdown(