Leona/pipversion patch (#4211)

* Update sitemap to not use a page title

* Specify required version of pip for ngcore pip installs

* Update pip patch
Co-authored-by: Scott Cyphers <diyessi@users.noreply.github.com>

README.md

@@ -27,6 +27,15 @@ The Python wheels for nGraph have been tested and are supported on the following
 * Debian 10
 * macOS 10.14.3 (Mojave)
 
+To install via pip, run: 
+
+```python
+
+pip install --upgrade pip==19.3.1
+pip install ngraph-core
+```
+
+
 Frameworks using nGraph Compiler stack to execute workloads have shown 
 [**up to 45X**](https://ai.intel.com/ngraph-compiler-stack-beta-release/) 
 performance boost when compared to native framework implementations. We've also 

doc/sphinx/source/frameworks/quickstart.rst

@@ -20,6 +20,7 @@ will install to a system location.
 
 .. code-block:: console
    
+   pip install --upgrade pip==19.3.1
    pip install tensorflow
    pip install ngraph-tensorflow-bridge