markdown name changes + cleanup

Author: BRONSOLO

README*.md README.mkdnREADME*.md renamed to README.mkdn

@@ -1,10 +1,18 @@
-\* = `plotlyupdate.m` is currently disabled. Please download the latest version 
-of the wrapper [here](https://github.com/plotly/MATLAB-Online/archive/master.zip).
-Once downloaded, run `plotlysetup('your_username', 'your_api_key')` to get started
-with the latest version. 
-
 ## MATLAB PLOTLY API WRAPPER 2.2.7
 
+### INSTALLATION:
+
+The lastest version of the wrapper can be downloaded [here](https://github.com/plotly/MATLAB-Online/archive/master.zip).
+
+Once downloaded, run `plotlysetup('your_username', 'your_api_key')` to get started. 
+
+### UPDATES: 
+
+**NOTE:** `plotlyupdate.m` is currently disabled.
+
+Please manually download and setup the latest version 
+of the wrapper by following the installation instructions above. 
+
 ### NUTSHELL:
 
 Convert your MATLAB figures into online [Plotly](https://plot.ly) graphs with a single line of code: