H4: Add more Apache2 build-time dependencies

exercises/h4.md

@@ -300,7 +300,7 @@ newuser@goauldhost:~/source_codes/apache2/apache2-2.4.18$ patch -Np1 -i ../patch
 Before compiling Apache web server, you must install the following build time dependencies:
 
 ```
-newuser@goauldhost:~/source_codes/apache2/apache2-2.4.18$ sudo apt-get install debhelper libaprutil1-dev libapr1-dev libpcre3-dev zlib1g-dev libssl-dev liblua5.1-0-dev libxml2-dev autotools-dev build-essential
+newuser@goauldhost:~/source_codes/apache2/apache2-2.4.18$ sudo apt-get install debhelper libaprutil1-dev libapr1-dev libpcre3-dev zlib1g-dev libssl-dev liblua5.1-0-dev libxml2-dev autotools-dev build-essential libnghttp2-dev liblua5.2-dev
 ```
 
 Compile and install the Apache web server: