Fixed docs

docs/building.md

 # Building SGX wallet from source
 
-### Install Intel SGX SDK
-
-The Intel SGX SDK is required for both Intel SGX hardware platform and Intel SGX simulator mode.
-The following instructions download the Intel SGX SDK 2.5 and installs it in
-`/opt/intel/sgxsdk/` :
-
-```bash
-sudo mkdir -p /opt/intel
-cd /opt/intel
-sudo wget https://download.01.org/intel-sgx/linux-2.5/rhel7.4-server/sgx_linux_x64_sdk_2.5.100.49891.bin
-echo "yes" | sudo bash ./sgx_linux_x64_sdk_2.5.100.49891.bin
-
-```
-
-This installs the Intel SGX SDK in the recommended location,
-`/opt/intel/sgxsdk` .
-The Intel SGX OpenSSL library expects the SDK to be here by default.
-
-After installing, source the Intel SGX SDK activation script to set
-`$SGX_SDK`, `$PATH`, `$PKG_CONFIG_PATH`, and `$LD_LIBRARY_PATH`.
-Append this line to your login shell script (`~/.bashrc` or similar):
-
-```bash
-source /opt/intel/sgxsdk/environment
-echo "source /opt/intel/sgxsdk/environment" >>~/.bashrc
-
-```
-
-To learn more about Intel SGX read the
-[Intel SGX SDK documentation](https://software.intel.com/en-us/sgx-sdk/documentation)
-or visit the [Intel SGX homepage](https://software.intel.com/en-us/sgx).
-Downloads are listed at
-[Intel SGX Downloads for Linux](https://01.org/intel-software-guard-extensions/downloads).
-
-
-
-<!-- SPDX-License-Identifier: (AGPL-3.0-only OR CC-BY-4.0) -->
-
-This document describes how to build sgxwallet on Ubuntu 18.04. 
-
 ## Clone this repository and its submodules
 
 `git clone --recurse-submodules  https://github.com/skalenetwork/sgxwallet.git`
 
-## Install Prerequisites
-
-```bash
-sudo apt-get install build-essential make cmake gcc g++ yasm  python libprotobuf10 flex bison automake libtool texinfo libgcrypt20-dev libgnutls28-dev
-
-```
-
 ## Install required debian packages
 
 ```bash
@@ -80,7 +33,7 @@ Note: to run in simulation mode, add --enable-sgx-simulation flag when you run c
 
 ```bash
 ./configure --enable-sgx-simulation
-
+make
 ```
 
 ## Build base Docker container

scripts/install_packages.sh

 #!/bin/bash
 sudo dpkg -i *.deb
-sudo apt install ccache cmake flex bison yasm ccache autoconf texinfo libgcrypt20-dev libgnutls28-dev libtool pkg-config
+sudo apt install -y build-essential make gcc g++ yasm  python libprotobuf10 flex bison automake
+sudo apt install -y ccache cmake ccache autoconf texinfo libgcrypt20-dev libgnutls28-dev libtool pkg-config