updated README

Added new dependency python-systemd

README.md

@@ -41,14 +41,15 @@ with anyone currently at risk of death in overcrowded prisons.
 
 ## Requirements
 
-- [systemd v248 or more][batman-systemd]
+- [systemd-networkd v248 or more][batman-systemd]
 - Linux kernel with batman-adv module
 - [iwd][]
-- python
-- python-setuptools (for building and installing)
-- [dasbus][]
-- WiFi adapter with ad-hoc support
-- two or more computers, or laptops with WiFi adapter, called nodes
+- python3
+- python3-setuptools (for building and installing)
+- python3-systemd (for logging to systemd journal)
+- [python3-dasbus][]
+- two or more machines with WiFi adapter having ad-hoc support, called
+  nodes
 - batctl (optional, for debugging)
 - python pip (optional, for uninstalling)
 
@@ -74,17 +75,17 @@ you need it.
 
 naxalnet is not packaged for Ubuntu, so you will have to build
 and install it manually.
-Currently, only the [unreleased 21.10][ubuntu-systemd] comes with the
-required version of systemd. Therefore, naxalnet won't work on Ubuntu
-21.04 or older.
+Currently, only the **unreleased 21.10** comes with the
+required version of systemd. Therefore, naxalnet **won't work on Ubuntu
+21.04 or older**.
 
-<!-- TODO: remove this message when systemd 248 arrives in 21.04 -->
+<!-- TODO: remove this message if systemd 248 arrives in 21.04 -->
 
 Install the requirements from the Ubuntu repositories:
 
 ```sh
 # batctl is optional
-sudo apt install systemd python3-pip iwd batctl build-essential
+sudo apt install python3-pip python3-systemd iwd batctl build-essential
 # Now, install dasbus with pip
 sudo pip3 install dasbus
 ```
@@ -96,11 +97,11 @@ Now follow the instructions in the
 
 naxalnet is not packaged for Fedora, so it should be installed
 manually. naxalnet requires atleast systemd v248 which is only
-available on Fedora 34 and above. Install the dependencies:
+available on **Fedora 34 and above**. Install the dependencies:
 
 ```sh
 # systemd-resolved may be required for rawhide
-sudo dnf install systemd-networkd iwd python3-dasbus python3-setuptools
+sudo dnf install systemd-networkd iwd python3-dasbus python3-setuptools python3-systemd
 ```
 
 Now head over to the [next section][install-manual] to install naxalnet.
@@ -319,6 +320,5 @@ See [LICENSE](LICENSE) for the complete version of the license.
 [iwd]: https://iwd.wiki.kernel.org "WiFi daemon"
 [free-sw]: https://gnu.org/philosophy/free-sw.html "What is free software?"
 [enablenx]: #running-at-boot
-[ubuntu-systemd]: https://packages.ubuntu.com/impish/systemd
 [requirements]: #requirements
 [install-manual]: #manually