Update README.md

bsp/stm32/stm32f401-st-nucleo/README.md

@@ -51,7 +51,7 @@ Each peripheral supporting condition for this BSP is as follows:
 
 ## Quickly Get Started
 
-This BSP provides MDK5 and IAR projects for developers. Also support GCC development environment Here's an example of the MDK5 development environment, to introduce how to run the system.
+This BSP provides MDK5 and IAR projects for developers. Also support GCC development environment. Here's an example of the MDK5 development environment, to introduce how to run the system.
 
 #### Hardware Connection
 
@@ -108,4 +108,4 @@ The pin serial number corresponds to the pin name as shown in the following tabl
 
 ## Maintained By
 
-[shaoguoji](https://github.com/shaoguoji)  752147916@qq.com
+[shaoguoji](https://github.com/shaoguoji)  752147916@qq.com
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