docs: line-wrap markdown and use double-spacing

Use two spaces to separate sentences to make the source easier to read
in monospace fonts (such as when editing or reviewing it), especially
for longer paragraphs.  The HTML output should still look the same.

Misc: This also removes source-level ambiguity regarding abbreviations
(such as "Mr.") vs the end of sentences and enables moving between
sentences in vi with `(` and `)`, for example.

1 files changed, 27 insertions, 23 deletions

diff --git a/README.md b/README.md
index 05dd2a52f..09a3276e6 100644
--- a/README.md
+++ b/README.md
@@ -5,20 +5,24 @@
 [![CodeQL CI](https://github.com/netblue30/firejail/workflows/CodeQL/badge.svg)](https://github.com/netblue30/firejail/actions?query=workflow%3ACodeQL)
 [![Packaging status (Repology)](https://repology.org/badge/tiny-repos/firejail.svg)](https://repology.org/project/firejail/versions)
 
-Firejail is a SUID sandbox program that reduces the risk of security breaches by restricting
-the running environment of untrusted applications using Linux namespaces, seccomp-bpf
-and Linux capabilities. It allows a process and all its descendants to have their own private
-view of the globally shared kernel resources, such as the network stack, process table, mount table.
-Firejail can work in a SELinux or AppArmor environment, and it is integrated with Linux Control Groups.
-
-Written in C with virtually no dependencies, the software runs on any Linux computer with a 3.x kernel
-version or newer. It can sandbox any type of processes: servers, graphical applications, and even
-user login sessions. The software includes sandbox profiles for a number of more common Linux programs,
+Firejail is a SUID sandbox program that reduces the risk of security breaches
+by restricting the running environment of untrusted applications using Linux
+namespaces, seccomp-bpf and Linux capabilities.  It allows a process and all
+its descendants to have their own private view of the globally shared kernel
+resources, such as the network stack, process table, mount table.  Firejail can
+work in a SELinux or AppArmor environment, and it is integrated with Linux
+Control Groups.
+
+Written in C with virtually no dependencies, the software runs on any Linux
+computer with a 3.x kernel version or newer.  It can sandbox any type of
+processes: servers, graphical applications, and even user login sessions.  The
+software includes sandbox profiles for a number of more common Linux programs,
 such as Mozilla Firefox, Chromium, VLC, Transmission etc.
 
-The sandbox is lightweight, the overhead is low. There are no complicated configuration files to edit,
-no socket connections open, no daemons running in the background. All security features are
-implemented directly in Linux kernel and available on any Linux computer.
+The sandbox is lightweight, the overhead is low.  There are no complicated
+configuration files to edit, no socket connections open, no daemons running in
+the background.  All security features are implemented directly in Linux kernel
+and available on any Linux computer.
 
 ## Videos
 
@@ -103,7 +107,7 @@ See also <https://wiki.ubuntu.com/SecurityTeam/FAQ>:
 > What software is supported by the Ubuntu Security team?
 >
 > Ubuntu is currently divided into four components: main, restricted, universe
-> and multiverse. All binary packages in main and restricted are supported by
+> and multiverse.  All binary packages in main and restricted are supported by
 > the Ubuntu Security team for the life of an Ubuntu release, while binary
 > packages in universe and multiverse are supported by the Ubuntu community.
 
@@ -147,7 +151,7 @@ cd firejail
 ./configure && make && sudo make install-strip
 ```
 
-On Debian/Ubuntu you will need to install git and gcc. AppArmor development
+On Debian/Ubuntu you will need to install git and gcc.  AppArmor development
 libraries and pkg-config are required when using the `--enable-apparmor`
 ./configure option:
 
@@ -171,7 +175,7 @@ firejail vlc                # starting VideoLAN Client
 sudo firejail /etc/init.d/nginx start
 ```
 
-Run `firejail --list` in a terminal to list all active sandboxes. Example:
+Run `firejail --list` in a terminal to list all active sandboxes.  Example:
 
 ```console
 $ firejail --list
@@ -191,16 +195,16 @@ firecfg --fix-sound
 sudo firecfg
 ```
 
-The first command solves some shared memory/PID namespace bugs in PulseAudio software prior to version 9.
-The second command integrates Firejail into your desktop. You would need to logout and login back to apply
-PulseAudio changes.
+The first command solves some shared memory/PID namespace bugs in PulseAudio
+software prior to version 9.  The second command integrates Firejail into your
+desktop.  You would need to logout and login back to apply PulseAudio changes.
 
 Start your programs the way you are used to: desktop manager menus, file
 manager, desktop launchers.
 
-The integration applies to any program supported by default by Firejail.
-There are over 900 default applications in the current Firejail version, and
-the number goes up with every new release.
+The integration applies to any program supported by default by Firejail.  There
+are over 900 default applications in the current Firejail version, and the
+number goes up with every new release.
 
 We keep the application list in
 [src/firecfg/firecfg.config](src/firecfg/firecfg.config)
@@ -290,8 +294,8 @@ Discussion:
 
 ### Profile Statistics
 
-A small tool to print profile statistics. Compile and install as usual.
-The tool is installed in the /usr/lib/firejail directory.
+A small tool to print profile statistics.  Compile and install as usual.  The
+tool is installed in the /usr/lib/firejail directory.
 
 Run it over the profiles in /etc/profiles: