Update README.md

Author: alex-bochkov

README.md

@@ -7,6 +7,8 @@
 
 <p>.NET 4.7.2 is required.</p>
 
+<p>To install the addin unpack files from the most recent <a href="/releases">release</a> into <i>C:\Program Files (x86)\Microsoft SQL Server Management Studio 18\Common7\IDE\Extensions</i> folder.</p>
+
 <img src="https://github.com/alekseybochkov/ssms-addin/blob/master/Addin.SSMS2018/pics/1.png?raw=true"/>
 <img src="https://github.com/alekseybochkov/ssms-addin/blob/master/Addin.SSMS2018/pics/2.png?raw=true"/>
 <img src="https://github.com/alekseybochkov/ssms-addin/blob/master/Addin.SSMS2018/pics/3.png?raw=true"/>