Added stock market plugin

[ztickm]

I made a plugin that opens a new webpage to look up for the stock market. There's a new md file in the marketwatch directory it contains the use guide for the plugin, I didn't want to include all of the guide in the README.md because it would clutter it up

if adding _marketwatch_useguide.md was a bad move, just ignore the last commit 2a855a8 _marketwatch_useguide.md contains the following:_

Stock Market lookup plugin for Sarah

Make Sarah check the stock market for you using marketwatch.com

usage :

$ sarah marketwatch lookup_term [country] [security_type]

example :

$ sarah marketwatch googl us stock
$ sarah marketwatch yamaha jp
$ sarah marketwatch AMD

country options

country_option | actual country name

• us | United States of America (default)
• all | All countries
• ca | Canada
• au | Australia
• fr | France
• de | Germany
• hk | Hong Kong
• it | Italy
• jp | Japan
• nl | Netherlands
• nz | New Zealand
• no | Norway
• za | South Africa
• es | Spain
• se | Sweden
• ch | Switzerland
• uk | United Kingdom

  security_type options

• All (default)
• Stock
• Fund
• Index
• Currency

[semicode-ltd]

Good Job my Friend ! any screenshot ?

[ztickm]

Here's a demo: https://www.youtube.com/watch?v=8VJ-sNVZ1P0

[semicode-ltd]

Its Cool idea friend

[ztickm]

Thanks for merging, keep going, semicode rocks !

[semicode-ltd]

you welcome :) , We will make it better , together