clean up BUILDING file

BUILDING

@@ -58,14 +58,14 @@ commands.
 
 Then install your system, g2_ircddb, g2_link and either dvap_rptr or dvrptr. Start by
 typing "sudo make installg2". This will install g2_ircddb and g2_link and all the
-files they require. Then either dvap_rptr or dvrptr by typing "sudo make installdvap"
-or "sudo make installdvrptr", respectively. Finally, if you want/need DTMFS, type
-"sudo make installdtmfs".
+files they require. Then intstall either dvap_rptr or dvrptr by typing "sudo make
+installdvap" or "sudo make installdvrptr", respectively. Finally, if you want/need
+DTMFS, type "sudo make installdtmfs".
 
 This will install the service scripts and symbolic links in /etc/init.d and everything
 else in /usr/local. The executables will be in /usr/local/bin and the *.cfg files and
 other data will be in /usr/local/etc. If you find that you need to modify a
-configuration file, do it in /usr/local/etc. If you edit the files in the build
+configuration file, edit the ones in /usr/local/etc. If you edit the files in the build
 directory, you will either have to copy these modified configuration files you you will
 have to reinstall the application.