adding extra software prerequisites

java-score-1/tutorial.md

@@ -24,6 +24,61 @@
   $ sudo apt install openjdk-11-jdk
   ```
 
+* [Download and Install GoLang]
+
+In macOS:
+
+  ```text
+  $ brew install go
+  ```
+
+In Linux \(Ubuntu 18.04\):
+
+  ```text
+  $sudo wget -c https://dl.google.com/go/go1.14.2.linux-amd64.tar.gz -O - | sudo tar -xz -C /usr/local
+  $export PATH=$PATH:/usr/local/go/bin
+  ```
+
+  Verify installation
+  ```text
+  go version
+  ```
+
+* [Download and Install Pyhton + VM]
+
+In macOS:
+
+  ```text
+  brew install python3
+  pip3 install virtualenv setuptools wheel
+  ```
+
+In Linux \(Ubuntu 18.04\):
+
+  ```text
+  $ sudo apt install python3
+  $ pip3 install virtualenv setuptools wheel
+  ```
+
+* [Download and Install rocksdb] (http://rocksdb.org/)
+
+In macOS:
+
+  ```text
+  $ brew install rocksdb
+  ```
+
+  In Linux \(Ubuntu 18.04\):
+    ```text
+    git clone https://github.com/facebook/rocksdb.git
+    cd rocksdb
+
+    DEBUG_LEVEL=0 make shared_lib install-shared
+
+    export LD_LIBRARY_PATH=/usr/local/lib
+  ```
+  
+
 ## Step 1. Source checkout
 
 First of all, you need to checkout the `gochain-local` repository for executing local node.