Add dependencies

Author: abhinav-upadhyay

README.md

@@ -9,6 +9,10 @@ A simple concurrent hash index based key-value store in go. It is very much insp
 - **Ordered Access** - Since the only supported index format is hash table based, there is no mechanism to access the keys in sorted order.
 - **Query Engine** - There is no query engine implemented yet. There are functions available in the library to query data though.
 
+### Dependencies
+	xxhash: `go get github.com/OneOfOne/xxhash`
+	sys/unix: `go get golang.org/x/sys/unix`
+
 ### Building the shell
 `go build ./cmd/shell`