setup: added setup.sh script

The setup.sh script is responsible for setting up the environment
including all configurations.

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README.md

@@ -2,6 +2,11 @@
 
 #### Setup ####
 
+Run setup script:
+$ ./script/setup.sh
+
+Or
+
 Define commit message template:
 $ git config commit.template .git_commit_template.txt
 

script/setup.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+# Define commit message template:
+git config commit.template .git_commit_template.txt
+
+# Enable git commandline colors:
+git config color.ui true
+
+echo "setup complete"