add onehalf color schemes (#5538)

repository/o.json

@@ -249,6 +249,18 @@
 				}
 			]
 		},
+		{
+			"name": "One Half Color Schemes",
+			"details": "https://github.com/sonph/onehalf-tmtheme",
+			"readme": "https://raw.githubusercontent.com/sonph/onehalf/master/README.md",
+			"labels": ["color scheme"],
+			"releases": [
+				{
+					"sublime_text": "*",
+					"tags": true
+				}
+			]
+		},
 		{
 			"name": "OnlineSearch",
 			"details": "https://github.com/rajeshvaya/sublime-online-searcher",