Add usage instructions

README.md

@@ -4,8 +4,29 @@
 
 ### Server
 
+Build the server using below instructions or use the container image to start the server.
+
+```bash
+docker run --name file-store-server -p 8080:8080 sghadi1203/file-store:latest
+```
+
 ### Client
 
+Build the client using below instructions or use the binary from github release page of this repo.
+
+```bash
+# set server address for client
+$ export FILE_STORE_SERVER="http://localhost:8080"
+
+$ store help
+Help
+ls                      List all files from store.
+add file1 file2...      Add files to store store.
+update file1 file2...   Update files in store store.
+rm file1 file2...       Remove files from store store.
+freq-words --limit 10|-n 10 --order dsc|asc     List count of each word. limit & order are optional flags.
+```
+
 ## Build Instructions
 
 #### Server Build