adding wp-content plugins and themes folders, with readme.txt files j…

…ust to force git to track them, but also useful for explaining how to add a submodule

wp-content/plugins/readme.txt

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+To add a new plugin use the following git command:
+
+> git submodule add --name <plugin_name> <repo_uri> wp-content/plugins/<plugin_folder_name>
+
+<plugin_name> 	- 	This is used as a shorthand to refer to submodules so that you can later refer 
+			to them this way instead of via the full path - recommend using same value as
+			that of <plugin_folder_name>.
+<repo_uri>    	- 	This should be the SSH URI (looks like git@domain/repo.git) when this is an 
+			internally developed plugin. HTTP URI's are the least preferred.
+<plugin_folder_name> -	This is the name of the folder the plugin will reside in, no leading or trailing 
+			slashes. NOTE: Some plugins (poorly written ones) may require its containing 
+			folder be named a certain way.
+
+This file is necessary in order to force git to track the /wp-content/plugins folder without actually having
+any plugins in it.

wp-content/themes/readme.txt

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+To add a new theme use the following git command:
+
+> git submodule add --name <theme_name> <repo_uri> wp-content/plugins/<theme_folder_name>
+
+<theme_name>   	-   	This is used as a shorthand to refer to submodules so that you can later refer
+                      	to them this way instead of via the full path - recommend using same value as
+                      	that of <theme_folder_name>.
+<repo_uri>      -    	This should be the SSH URI (looks like git@domain/repo.git) when this is an
+                        internally developed plugin. HTTP URI's are the least preferred.
+<theme_folder_name> -  	This is the name of the folder the theme will reside in, no leading or trailing
+                        slashes. NOTE: Some themes & plugins (poorly written ones) may require its containing
+                        folder be named a certain way.
+
+This file is necessary in order to force git to track the /wp-content/plugins folder without actually having
+any plugins in it.