tweaks + README

README.md

@@ -0,0 +1,37 @@
+# secretshare
+
+This program is an implementation of Shamir's secret sharing.
+A secret can be split into multiple shares and a selectable number of shares is required to reconstruct the secret again.
+
+# Example
+
+Passing a secret to secretshare for encoding:
+
+```
+$ echo This is a secret | secretshare -e2,5
+2-1-cfFLZV0QABT0RmqOCFVxW/w
+2-2-HkctX9qblUhW7EGutTxNKvs
+2-3-O94PSafi5nzDilhF3htZBQ0
+2-4-wDbhK8mQovAPpRfu0u41yPU
+2-5-5a/DPbTp0cSaww4Fuckh5wM
+```
+
+Decoding a subset (2nd and 3rd) of shares (one share per line):
+
+```
+$ echo -e "2-2-HkctX9qblUhW7EGutTxNKvs \n 2-3-O94PSafi5nzDilhF3htZBQ0" | secretshare -d
+2-1-cfFLZV0QABT0RmqOCFVxW/w
+2-2-HkctX9qblUhW7EGutTxNKvs
+2-3-O94PSafi5nzDilhF3htZBQ0
+2-4-wDbhK8mQovAPpRfu0u41yPU
+2-5-5a/DPbTp0cSaww4Fuckh5wM
+```
+
+# Building
+
+This project is Cargo-enabled. So, you should be able to built it with
+
+```
+$ cargo build --release
+```
+