User suggestion to change extension to blob.

Change-Id: Idd43000f648678b9478cd29f87ff91791d2a0e43
diff --git a/_devices/asustransformerinfinityTF700T.markdown b/_devices/asustransformerinfinityTF700T.markdown
index ba1322b..5a14f32 100644
--- a/_devices/asustransformerinfinityTF700T.markdown
+++ b/_devices/asustransformerinfinityTF700T.markdown
@@ -28,4 +28,4 @@
 <p class="text">On your device, go into Settings -> About and find the Build Number and tap on it 7 times to enable developer settings. Press back and go into Developer Options and enable USB debugging. From your computer, open a command prompt and type:</p>
 <p class="text">adb reboot bootloader</p>
 <p class="text">You should now be in fastboot mode. Download the correct blob file and copy the file into the same folder as your adb and fastboot binaries. Rename the image to twrp.blob and type:</p>
-<p class="text">fastboot -i 0x0b05 flash staging twrp.img<p></p>fastboot reboot</p>
+<p class="text">fastboot -i 0x0b05 flash staging twrp.blob<p></p>fastboot reboot</p>