[gjs: 2/3] Updated Dependencies

[Philip Chimento <pchimento src gnome org>]

commit 1aad026599dc96dcef95f68217159f1c7d867164
Author: veenanitk <veena nagar 92 gmail com>
Date:   Wed Mar 31 23:08:20 2021 +0000

    Updated Dependencies

 doc/Hacking.md | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)
---
diff --git a/doc/Hacking.md b/doc/Hacking.md
index f57de05f..d00bfae3 100644
--- a/doc/Hacking.md
+++ b/doc/Hacking.md
@@ -14,22 +14,21 @@ You can also skip this step if you are not writing any C++ code.)
 
 ## Dependencies
 
-GJS requires four other libraries to be installed: GLib, libffi,
-gobject-introspection, and SpiderMonkey (also called "mozjs78" on some
-systems.)
+GJS requires five other libraries to be installed: GLib, libffi,
+gobject-introspection, SpiderMonkey (also called "mozjs78" on some
+systems.) and the build tool Meson.
 The readline library is not required, but strongly recommended.
 We recommend installing your system's development packages for GLib,
-libffi, gobject-introspection, and readline.
+libffi, gobject-introspection, Meson and readline.
 
 <details>
     <summary>Ubuntu</summary>
-    <code>sudo apt install meson</code>
-    <code>sudo apt-get install libglib2.0-dev libffi-dev libreadline-dev libgirepository1.0-dev</code>
+    <code>sudo apt-get install libglib2.0-dev libffi-dev libreadline-dev libgirepository1.0-dev meson</code>
 </details>
 
 <details>
     <summary>Fedora</summary>
-    <code>sudo dnf install glib2-devel libffi readline-devel gobject-introspection-devel</code>
+    <code>sudo dnf install glib2-devel libffi readline-devel gobject-introspection-devel meson</code>
 </details>
 
 But, if your system's versions of these packages aren't new enough, then