drafting an introduction document to how releases work

docs/git-database.md

@@ -0,0 +1,26 @@
+# Working with the Git Database
+
+### Tag a Commit
+
+Tags can be created through the GitHub API
+
+```
+var tag = new NewTag {
+    Message = "Tagging a new release of Octokit",
+    Tag = "v1.0.0",
+    Object = "ee062e0", // short SHA
+    Type = TaggedType.Commit, // TODO: what are the defaults when nothing specified?
+    Tagger = new Signature
+    {
+        Name = "Brendan Forster",
+        Email = "brendan@github.com",
+        Date = DateTime.UtcNow
+    }	
+};
+var result = await client.GitDatabase.Tags.Create("octokit", "octokit.net", tag);
+Console.WriteLine("Created a tag for {0} at {1}", result.Tag, result.Sha);
+```
+
+Or you can fetch an existing tag from the API:
+
+var tag = await client.GitDatabase.Tags.Get("octokit", "octokit.net", "v1.0.0");