Update README.md

README.md

@@ -1,6 +1,7 @@
 [![PayPal donate button](https://img.shields.io/badge/paypal-donate-green.svg)](https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=lj2007331@gmail.com&item_name=OneinStack%20Donate&currency_code=USD)
 [![支付宝捐助按钮](https://img.shields.io/badge/%E6%94%AF%E4%BB%98%E5%AE%9D-%E5%90%91TA%E6%8D%90%E5%8A%A9-green.svg)](https://static.oneinstack.com/images/alipay.png)
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+
 This script is written using the shell, in order to quickly deploy `LEMP`/`LAMP`/`LNMP`/`LNMPA`/`LTMP`(Linux, Nginx/Tengine/OpenResty, MySQL in a production environment/MariaDB/Percona, PHP, JAVA), applicable to CentOS 5~7(including redhat), Debian 6~8, Ubuntu 12~16 of 32 and 64.
 
 Script properties:
@@ -42,7 +43,7 @@ screen -S oneinstack    // If network interruption, you can execute the command
 ./install.sh   // Do not sh install.sh or bash install.sh such execution
 ```
 
-## How to add PHP Extensions 
+## How to add Extensions 
 ```bash
 cd ~/oneinstack    // Must enter the directory execution under oneinstack
 ./addons.sh    // Do not sh addons.sh or bash addons.sh such execution