README - Add libcap-dev dependency

Signed-off-by: Galantsev, Dmitrii <dmitrii.galantsev@amd.com>

README.md

@@ -139,7 +139,7 @@ If you prefer to build RDC from source, follow the steps below.
 
     ```bash
     sudo apt-get update
-    sudo apt-get install automake make cmake g++ unzip build-essential autoconf libtool pkg-config libgflags-dev libgtest-dev clang libc++-dev curl
+    sudo apt-get install automake make cmake g++ unzip build-essential autoconf libtool pkg-config libgflags-dev libgtest-dev clang libc++-dev curl libcap-dev
     ```
 
 2. **Clone and Build gRPC:**

docs/install/install.rst

@@ -58,7 +58,7 @@ gRPC and Protoc must be built from source as the prebuilt packages are not avail
    .. code-block:: shell
 
     sudo apt-get update
-    sudo apt-get install automake make g++ unzip build-essential autoconf libtool pkg-config libgflags-dev libgtest-dev clang libc++-dev curl
+    sudo apt-get install automake make g++ unzip build-essential autoconf libtool pkg-config libgflags-dev libgtest-dev clang libc++-dev curl libcap-dev
 
 2. Clone and build gRPC: