fix a typo in install guide
fix a typo in install guide

drptbl/splinter,nikolas/splinter,objarni/splinter,cobrateam/splinter,nikolas/splinter,objarni/splinter,myself659/splinter,lrowe/splinter,gjvis/splinter,cobrateam/splinter,drptbl/splinter,myself659/splinter,gjvis/splinter,bubenkoff/splinter,lrowe/splinter,drptbl/splinter,gjvis/splinter,underdogio/splinter,cobrateam/splinter,bubenkoff/splinter,bmcculley/splinter,myself659/splinter,bmcculley/splinter,lrowe/splinter,bmcculley/splinter,underdogio/splinter,underdogio/splinter,objarni/splinter,nikolas/splinter