Added my sublime_guard plugin to repositories.json

I did this so that users would be able to obtain my sublime_guard
plugin via Package Control's default repository.

repositories.json

@@ -114,6 +114,7 @@
 		"https://github.com/titoBouzout/SideBarEnhancements",
 		"https://github.com/virtix/sublime-text-2-mxunit",
 		"https://github.com/witsch/SublimePythonTidy",
+		"https://github.com/cyphactor/sublime_guard",
 		"https://raw.github.com/colinta/sublime_packages/master/packages.json",
 		"https://raw.github.com/csytan/sublime-text-2-github/master/packages.json",
 		"https://raw.github.com/darinmorrison/sublime-packages/master/packages.json",
@@ -192,7 +193,8 @@
 		"sublimetext_indentxml": "Indent XML",
 		"toggle-readonly" : "Toggle Read-Only",
 		"ValaForSublime" : "Vala",
-		"whitespacecorrector" : "Whitespace Corrector"
+		"whitespacecorrector" : "Whitespace Corrector",
+		"sublime_guard" : "Guard"
 	},
 	"renamed_packages": {
 		"IncDecValue": "Inc-Dec-Value",