Update README.md

Author: gkorland

README.md

@@ -8,7 +8,19 @@ TODO:
 
 ## Building
 
+```
+git clone https://github.com/RedisLabsModules/redismodule-rs.git
+git clone https://github.com/RediSearch/redisearch-api-rs.git
+cd redisearch-api-rs
+cargo build
+```
+
 On macOS:
 - `brew install llvm`
 
-Make sure you have `libredisearch.a` built. This will be done automatically in the future.
+* Make sure you have `libredisearch.a` built. This will be done automatically in the future.
+For more details see: https://github.com/RediSearch/RediSearch
+
+### Build example
+
+`cargo build --example hello_redisearch`