Change dependencies for Ubuntu 18.04

Couple packages have different names:
lib32readline6-dev --> lib32readline-dev
lib32z-dev --> lib32z1-dev

Certain package is not required:
git-core (replaced by git)

Certain packages do not exist anymore in repository:
libesd0-dev (may need replacement)
diff --git a/blissroms/build-guide.md b/blissroms/build-guide.md
index acb6257..0c5736d 100644
--- a/blissroms/build-guide.md
+++ b/blissroms/build-guide.md
@@ -33,10 +33,14 @@
 
     sudo apt install bison build-essential curl flex git gnupg gperf libesd0-dev liblz4-tool libncurses5-dev libsdl1.2-dev libwxgtk2.8-dev libxml2 libxml2-utils lzop maven pngcrush schedtool squashfs-tools xsltproc zip zlib1g-dev g++-multilib gcc-multilib lib32ncurses5-dev lib32readline6-dev lib32z1-dev git-core libc6-dev-i386 x11proto-core-dev libx11-dev lib32z-dev ccache libgl1-mesa-dev unzip
 
-For Ubuntu 16.x (or newer):
+For Ubuntu 16.x:
 
     sudo apt install bison build-essential curl flex git gnupg gperf libesd0-dev liblz4-tool libncurses5-dev libsdl1.2-dev libwxgtk3.0-dev libxml2 libxml2-utils lzop maven pngcrush schedtool squashfs-tools xsltproc zip zlib1g-dev g++-multilib gcc-multilib lib32ncurses5-dev lib32readline6-dev lib32z1-dev git-core libc6-dev-i386 x11proto-core-dev libx11-dev lib32z-dev ccache libgl1-mesa-dev unzip
 
+For Ubuntu 18.x (or newer):
+
+    sudo apt install bison build-essential curl flex git gnupg gperf liblz4-tool libncurses5-dev libsdl1.2-dev libwxgtk3.0-dev libxml2 libxml2-utils lzop maven pngcrush schedtool squashfs-tools xsltproc zip zlib1g-dev g++-multilib gcc-multilib lib32ncurses5-dev lib32readline-dev lib32z1-dev libc6-dev-i386 x11proto-core-dev libx11-dev ccache libgl1-mesa-dev unzip
+
 ### Install source code tools
 
 Now we need to get the source code via a program named `repo`, made by Google. The primary function of `repo` is to read a manifest file located in Bliss's GitHub, and find what repositories you need to actually build Android.
@@ -182,4 +186,4 @@
 
 After you finish building, you can try out the Git Started guide. Make changes, commit, and send them off to our Gerrit for review! Or better yet, download experimental commits not ready for the mainline repositories and review them! Again, ROM building is a fun project you can work with. I hope this guide was a lot of fun to run through!
 
--- Eric Park (ideaman924)
\ No newline at end of file
+-- Eric Park (ideaman924)