Add and fix git function and remove greeting

fish/.config/fish/config.fish

@@ -2,6 +2,9 @@ if status is-interactive
     # Commands to run in interactive sessions can go here
 end
 
+set fish_greeting
+ 
+# setup path
 fish_add_path $HOME/.local/bin
 fish_add_path $HOME/bin
 fish_add_path /snap/bin

fish/.config/fish/functions/gcb.fish

@@ -0,0 +1,3 @@
+function gcb
+    git checkout -b $argv
+end

fish/.config/fish/functions/gco.fish

@@ -0,0 +1,3 @@
+function gco
+    git checkout $argv
+end

fish/.config/fish/functions/gl.fish

@@ -1,3 +1,3 @@
-function gp
+function gl
     git pull $argv
 end