Update GFM snippets to atom syntax instead of textmate

src/packages/gfm/snippets/bold.cson

@@ -1,4 +0,0 @@
-'name': 'bold text'
-'scope': 'source.gfm'
-'tabTrigger': 'b'
-'content': '**$1**$0'

src/packages/gfm/snippets/code.cson

@@ -1,4 +0,0 @@
-'name': 'code block'
-'scope': 'source.gfm'
-'tabTrigger': 'code'
-'content': '```$1\n$2\n```$0'

src/packages/gfm/snippets/gfm.cson

@@ -0,0 +1,16 @@
+'.source.gfm':
+  'bold text':
+    prefix: 'b'
+    body: '**$1**$0'
+  'embedded image':
+    prefix: 'img'
+    body: '![$1]($2)$0'
+  'italic text':
+    prefix: 'i'
+    body: '*$1*$0'
+  'link':
+    prefix: 'l'
+    body: '[$1]($2)$0'
+  'code':
+    prefix: 'code'
+    body: '```$1\n$2\n```$0'

src/packages/gfm/snippets/img.cson

@@ -1,4 +0,0 @@
-'name': 'embedded image'
-'scope': 'source.gfm'
-'tabTrigger': 'img'
-'content': '![$1]($2)$0'

src/packages/gfm/snippets/italic.cson

@@ -1,4 +0,0 @@
-'name': 'italic text'
-'scope': 'source.gfm'
-'tabTrigger': 'i'
-'content': '*$1*$0'

src/packages/gfm/snippets/link.cson

@@ -1,4 +0,0 @@
-'name': 'link'
-'scope': 'source.gfm'
-'tabTrigger': 'l'
-'content': '[$1]($2)$0'