Fix CHANGELOG entry. Remove unneeded blank lines from the README and CHANGELOG.

Author: jbampton

CHANGELOG.md

@@ -70,7 +70,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [1.9.1] - 2020-02-27
 ### Added
-- [#1133](github.com/plotly/dash/pull/1133) Allow the `compress` config variable to be set with an environment variable with DASH_COMPRESS=FALSE
+- [#1133](https://github.com/plotly/dash/pull/1133) Allow the `compress` config variable to be set with an environment variable with DASH_COMPRESS=FALSE
 
 ## [1.9.0] - 2020-02-04
 ### Fixed
@@ -505,7 +505,6 @@ clientside JavaScript callbacks via inline strings.
 - `requests_pathname_prefix` must end with `routes_pathname_prefix`. If you supplied both `requests` and `routes` pathname before this update, make sure `requests_pathname_prefix` ends with the same value as `routes_pathname_prefix`.
 - `url_base_pathname` sets both `requests/routes` pathname, cannot supply it with either `requests` or `routes` pathname prefixes.
 
-
 ## 0.24.2 - 2018-08-13
 ### Fixed
 - [#320](https://github.com/plotly/dash/pull/320) Disallow duplicate component ids in the initial layout.
@@ -519,7 +518,6 @@ clientside JavaScript callbacks via inline strings.
 ### Added
 - [#319](https://github.com/plotly/dash/pull/309) Add a modified time query string to assets included in the index in order to bust the cache.
 
-
 ## 0.23.1 - 2018-08-02
 ### Added
 - [#316](https://github.com/plotly/dash/pull/316) Add `ie-compat` meta tag to the index by default.
@@ -617,7 +615,6 @@ app = dash.Dash(...)
 - 🔧 Add two new `config` variables: `routes_pathname_prefix` and `requests_pathname_prefix` to provide more flexibility for API routing when Dash apps are run behind proxy servers. `routes_pathname_prefix` is a prefix applied to the backend routes and `requests_pathname_prefix` prefixed in requests made by Dash's front-end. `dash-renderer==0.8.0rc3` uses these endpoints.
 - [#112](https://github.com/plotly/dash/pull/112) 🔧 Add `id` to `KeyError` exceptions in components.
 
-
 ### Fixed
 - ✏️  Fix a typo in an exception.
 - 🔧 Replaced all illegal characters in environment variables.

README.md

@@ -8,7 +8,6 @@
 [![LGTM Alerts](https://img.shields.io/lgtm/alerts/g/plotly/dash.svg)](https://lgtm.com/projects/g/plotly/dash/alerts)
 [![LGTM Grade](https://img.shields.io/lgtm/grade/python/g/plotly/dash.svg)](https://lgtm.com/projects/g/plotly/dash/context:python)
 
-
 #### *Dash is a Python framework for building analytical web applications. No JavaScript required*.
 
 Built on top of Plotly.js, React and Flask, Dash ties modern UI elements like dropdowns, sliders, and graphs directly to your analytical Python code. Read our tutorial proudly crafted ❤️ by Dash itself.
@@ -19,7 +18,6 @@ Built on top of Plotly.js, React and Flask, Dash ties modern UI elements like dr
 
 - [Dash Docs on Heroku](http://dash-docs.herokuapp.com/) (for corporate network that cannot access plotly.com)
 
-
 ### App Samples
 
 | App | Description |
@@ -42,4 +40,3 @@ For companies with software budgets, Plotly offers
 See [https://plotly.com/dash/support](https://plotly.com/dash/support) for ways to get in touch.
 
 ![image](https://user-images.githubusercontent.com/1280389/30084008-9fbc68fc-925e-11e7-891c-18a9b8f6ac6b.png)
-