Update Readme and Contributors

Hoping this will work for the readme changes as well as add Peter as a contributor as he made those much needed changes!

Co-Authored-By: Peter Higgins <higgi13425@users.noreply.github.com>
diff --git a/.Rproj.user/441ADA46/sources/s-D813FBD9/815ADF03 b/.Rproj.user/441ADA46/sources/s-D813FBD9/815ADF03
new file mode 100644
index 0000000..e5c4122
--- /dev/null
+++ b/.Rproj.user/441ADA46/sources/s-D813FBD9/815ADF03
@@ -0,0 +1,22 @@
+{
+    "collab_server" : "",
+    "contents" : "",
+    "created" : 1547924094518.000,
+    "dirty" : false,
+    "encoding" : "UTF-8",
+    "folds" : "",
+    "hash" : "0",
+    "id" : "815ADF03",
+    "lastKnownWriteTime" : 1547924098,
+    "last_content_update" : 1547924098455,
+    "path" : "~/Documents/GitHub/posterdown/README.md",
+    "project_path" : "README.md",
+    "properties" : {
+        "cursorPosition" : "134,0",
+        "scrollLine" : "124"
+    },
+    "relative_order" : 2,
+    "source_on_save" : false,
+    "source_window" : "",
+    "type" : "markdown"
+}
\ No newline at end of file