tools/ramdump/readme: Modify typo and awkward description
tools/ramdump/readme: Modify typo and awkward description

1. typo : terminal, dumpParser
2. modify description about ramdump step

sunghan-chang/TizenRT,an4967/TizenRT,davidfather/TizenRT,junmin-kim/TizenRT,jeongarmy/TizenRT,jeongchanKim/TizenRT,davidfather/TizenRT,Samsung/TizenRT,junmin-kim/TizenRT,HONGCHAEHEE/TizenRT,jeongchanKim/TizenRT,junmin-kim/TizenRT,JeonginKim/TizenRT,sunghan-chang/TizenRT,pillip8282/TizenRT,pillip8282/TizenRT,pillip8282/TizenRT,pillip8282/TizenRT,HONGCHAEHEE/TizenRT,pillip8282/TizenRT,JeonginKim/TizenRT,jsdosa/TizenRT,an4967/TizenRT,jeongchanKim/TizenRT,jsdosa/TizenRT,JeonginKim/TizenRT,jsdosa/TizenRT,jeongarmy/TizenRT,pillip8282/TizenRT,JeonginKim/TizenRT,davidfather/TizenRT,junmin-kim/TizenRT,jsdosa/TizenRT,Samsung/TizenRT,jeongchanKim/TizenRT,sunghan-chang/TizenRT,jeongchanKim/TizenRT,jsdosa/TizenRT,an4967/TizenRT,chanijjani/TizenRT,davidfather/TizenRT,HONGCHAEHEE/TizenRT,jeongarmy/TizenRT,HONGCHAEHEE/TizenRT,chanijjani/TizenRT,junmin-kim/TizenRT,chanijjani/TizenRT,davidfather/TizenRT,an4967/TizenRT,chanijjani/TizenRT,Samsung/TizenRT,jeongarmy/TizenRT,jeongchanKim/TizenRT,jeongarmy/TizenRT,davidfather/TizenRT,an4967/TizenRT,jeongarmy/TizenRT,sunghan-chang/TizenRT,jsdosa/TizenRT,chanijjani/TizenRT,davidfather/TizenRT,jeongchanKim/TizenRT,jsdosa/TizenRT,junmin-kim/TizenRT,HONGCHAEHEE/TizenRT,junmin-kim/TizenRT,jeongarmy/TizenRT,Samsung/TizenRT,chanijjani/TizenRT,an4967/TizenRT,HONGCHAEHEE/TizenRT,an4967/TizenRT,JeonginKim/TizenRT,pillip8282/TizenRT,sunghan-chang/TizenRT,JeonginKim/TizenRT,sunghan-chang/TizenRT,Samsung/TizenRT,chanijjani/TizenRT,Samsung/TizenRT,Samsung/TizenRT,sunghan-chang/TizenRT