add NTLITE_DRIVE and NTLITE_NTPATH so i can work on my pc and my laptop, fix dynamic driver loading

readme.md

@@ -25,12 +25,13 @@ It boots into a shell.
 
 ## how 2 build
 
+* open env variables
+* set `NTLITE_DRIVE` as your thumbdrive (ex. `G:`)
+* set `NTLITE_NTPATH` as your thumbdrive (ex. `\\.\PhysicalDrive7`)
 * open vs x64 build tools
 * cd into this directory
 * `build.bat`
-* open `run.bat`/`rund.bat`/`runa.bat`/`runad.bat`
-* replace `\\.\PhysicalDrive7` with your thumbdrive partition
-* `run.bat`/`rund.bat`/`runa.bat`/`runad.bat`
+* `run.bat`(ide)/`rund.bat`(ide, debug)/`runa.bat`(ahci)/`runad.bat`(ahci, debug)
 * enjoy
 
 ## how it looks when built