fix(snippets): ADR correct field order; prefix ; for all keys; add meeting/weekly/todo/blogpost

snippets/org-mode/blogpost

@@ -0,0 +1,13 @@
+# -*- mode: snippet -*-
+# name: Blog post template
+# key: ;blogpost
+# --
+#+title: ${1:Title}
+#+date: `(format-time-string "%Y-%m-%d")`
+#+tags[]: ${2:tag1 tag2}
+
+${3:Introduction paragraph.}
+
+** ${4:First section}
+${5:Content.}
+$0