added .gitignore and included .DS_Store for Mac

.DS_Store

diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000..af66b76
--- /dev/null
+++ b/.DS_Store
Binary files differ

.gitignore

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..e43b0f9
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.DS_Store

feedback/.DS_Store

diff --git a/feedback/.DS_Store b/feedback/.DS_Store
new file mode 100644
index 0000000..383a956
--- /dev/null
+++ b/feedback/.DS_Store
Binary files differ

feedback/run-a/README.md

diff --git a/feedback/run-a/README.md b/feedback/run-a/README.md
new file mode 100644
index 0000000..36b36ef
--- /dev/null
+++ b/feedback/run-a/README.md
@@ -0,0 +1 @@
+This directory contains SWT calibre run results
\ No newline at end of file