Update README.md fix typos

Author: Qinghao Shi

README.md

@@ -87,7 +87,8 @@ This will try to launch every model in the above list to verify them, so will ta
 >e.g. `mbedhtrun --fm DEFAULT -m FVP_MPS2_M3 -f test.elf`
 
 *<model_name> : The name to fastmodel target supported in mbed os*
-*<config_name> : This could be ether pre-defined CONFIG_NAME listed inside mbedfm or a local file*
+
+*<config_name> : This could be ether pre-defined `CONFIG_NAME` listed inside mbedfm or a local file*
 
 # Configurations to Fast Models
 
@@ -113,4 +114,4 @@ Then users need to edit `mbed-fastmodel-agent\fm_agent\settings.json` file eithe
 Key `configs_add` can be added for additional config files for each model, Or Key `config` can be added to overwrite `GLOBAL` config files.
 
 ## Known limitations:
-1. Fast Models normally have 3 or 4 serial terminal ports. But currently only one port is supported at moment.
+1. Fast Models normally have 3 or 4 serial terminal ports. But currently only one port is supported at moment.