Add reStructuredText admonition snippets

UltiSnips/rst.snippets

@@ -0,0 +1,49 @@
+snippet todo "todo admonition"
+.. todo::
+	$0
+endsnippet
+
+snippet attention "attention admonition"
+.. attention::
+	$0
+endsnippet
+
+snippet caution "caution admonition"
+.. caution::
+	$0
+endsnippet
+
+snippet danger "danger admonition"
+.. danger::
+	$0
+endsnippet
+
+snippet error "error admonition"
+.. error::
+	$0
+endsnippet
+
+snippet hint "hint admonition"
+.. hint::
+	$0
+endsnippet
+
+snippet important "important admonition"
+.. important::
+	$0
+endsnippet
+
+snippet note "note admonition"
+.. note::
+	$0
+endsnippet
+
+snippet tip "tip admonition"
+.. tip::
+	$0
+endsnippet
+
+snippet warning "warning admonition"
+.. warning::
+	$0
+endsnippet