Updated README to match current version

There were some small differences between the README description of
the program and it's current behavior. These differences have been
resolved in this commit.

README.md

@@ -1,9 +1,14 @@
 # Python Weather Generator
 
 **Author: Brian Vanderwende**  
-**Version: beta1**
+**Version: 1.0**
 
-This weather generator creates a sample forecast for Boulder, CO. Daily values are produced for high temperature, low temperature, and accumulated precipitation.
+This weather generator creates a sample forecast for multiple cities. Currently, forecasts are produced for:
+
++ Boulder, CO
++ Philadelphia, PA
+
+Daily values are produced for high temperature, low temperature, and accumulated precipitation.
 
 ### Requirements
 
@@ -17,6 +22,8 @@ The weather generator features the following tunable parameters:
 + Mean and standard deviation values for Gaussian distributions
 + Chance of precipitation on any particular day
 
+These parameters are set for each city in JSON format in the "cities" directory.
+
 ### How to Run
 
 Simply execute the script:
@@ -25,10 +32,11 @@ Simply execute the script:
 ./wxgen.py
 ```
 
-The forecast will be written to a file in the "forecasts" directory:
+The forecasts will be written to files in the "forecasts" directory:
 
 ```
 Forecast for Boulder, CO
+Generated at 2134Z - 13 Apr 2018
 
 Day 1
   High:      12.33 deg C