Update 'readme.md'

readme.md

-# <h1>Installing Elixir in Ubuntu</h1>
-#### <h2>Tested for Ububtu 20.04</h2>
+# Installing Elixir in Ubuntu
+#### Tested for Ububtu 20.04
+
+
+Step 1: Install Dependencies
+
+1a: Install Node
+1b: Install Git
+1c: Clone elxr
+
+Step 2: elxr pull
+
+Step 3: Switch branch
+elxr use elixir
+
+Step 4: SyncMaster (only for production)
+
+Step 5: Pull all instances
+elxr npm i