Update README.rst

* Don't nest code blocks inside quote blocks.
* Replace bash with sh, as there's nothing bash-specific in the examples.
* There is no syntax highlighting for grub, use sh.
* Use sentence case for headings.
* Use monospace for paths.

README.rst

@@ -33,7 +33,7 @@ Profiles
 Archiso comes with two profiles: **baseline** and **releng**. While both can serve as starting points for creating
 custom live media, **releng** is used to create the monthly installation medium.
 They can be found below `configs/baseline/ <configs/baseline/>`_  and `configs/releng/ <configs/releng/>`_
-(respectively). Both profiles are defined by files to be placed into overlays (e.g. *airootfs* -> *the image's /*).
+(respectively). Both profiles are defined by files to be placed into overlays (e.g. airootfs ‎→‎ the image's ``/``).
 
 Read `README.profile.rst <README.profile.rst>`_ to learn more about how to create profiles.
 
@@ -47,21 +47,21 @@ As filesystems are created and various mount actions have to be done when creati
 the scripts.
 
 When archiso is installed system-wide and the modification of a profile is desired, it is necessary to copy it to a
-writeable location, as */usr/share/archiso* is tracked by the package manager and only writeable by root (changes will
+writeable location, as ``/usr/share/archiso`` is tracked by the package manager and only writeable by root (changes will
 be lost on update).
 
 The examples below will assume an unmodified profile in a system location (unless noted otherwise).
 
 It is advised to consult the help output of **mkarchiso**:
 
-  .. code:: bash
+.. code:: sh
 
    mkarchiso -h
 
 Create images with packaged archiso
 -----------------------------------
 
-  .. code:: bash
+.. code:: sh
 
    mkarchiso -w path/to/work_dir -o path/to/out_dir path/to/profile
 
@@ -70,7 +70,7 @@ Create images with local clone
 
 Clone this repository and run:
 
-  .. code:: bash
+.. code:: sh
 
    ./archiso/mkarchiso -w path/to/work_dir -o path/to/out_dir path/to/profile
 
@@ -80,51 +80,50 @@ Testing
 The convenience script **run_archiso** is provided to boot into the medium using qemu.
 It is advised to consult its help output:
 
-  .. code:: bash
+.. code:: sh
 
    run_archiso -h
 
 Run the following to boot the iso using BIOS:
 
-  .. code:: bash
+.. code:: sh
 
    run_archiso -i path/to/an/arch.iso
 
 Run the following to boot the iso using UEFI:
 
-  .. code:: bash
+.. code:: sh
 
    run_archiso -u -i path/to/an/arch.iso
 
 The script can of course also be executed from this repository:
 
 
-  .. code:: bash
+.. code:: sh
 
    ./scripts/run_archiso.sh -i path/to/an/arch.iso
 
 Installation
 ============
 
-To install archiso system-wide use the included **Makefile**:
+To install archiso system-wide use the included ``Makefile``:
 
-  .. code:: bash
+.. code:: sh
 
    make install
 
 Optionally install archiso's mkinitcpio hooks:
 
-  .. code:: bash
+.. code:: sh
 
    make install-initcpio
 
-Optional Features
+Optional features
-=================
 
-The iso image contains a grub environment block holding the iso name and version. This allows to
+The iso image contains a GRUB environment block holding the iso name and version. This allows to
-boot the iso image from grub with a version specific cow directory to mitigate overlay clashes.
+boot the iso image from GRUB with a version specific cow directory to mitigate overlay clashes.
 
-  .. code:: grub
+.. code:: sh
      loopback loop archlinux.iso
      load_env -f (loop)/arch/grubenv
      linux (loop)/arch/boot/x86_64/vmlinuz-linux ... \
@@ -134,7 +133,7 @@ boot the iso image from grub with a version specific cow directory to mitigate o
 Contribute
 ==========
 
-Development of archiso takes place on Arch Linux' Gitlab: https://gitlab.archlinux.org/archlinux/archiso
+Development of archiso takes place on Arch Linux' Gitlab: https://gitlab.archlinux.org/archlinux/archiso.
 
 Please read our distribution-wide `Code of Conduct <https://wiki.archlinux.org/index.php/Code_of_conduct>`_ before
 contributing, to understand what actions will and will not be tolerated.
@@ -153,18 +152,18 @@ Releases
 
 `Releases of archiso <https://gitlab.archlinux.org/archlinux/archiso/-/tags>`_ are created by its current maintainer
 `David Runge <https://gitlab.archlinux.org/dvzrv>`_. Tags are signed using the PGP key with the ID
-`C7E7849466FE2358343588377258734B41C31549`.
+``C7E7849466FE2358343588377258734B41C31549``.
 
 To verify a tag, first import the relevant PGP key:
 
-  .. code:: bash
+.. code:: sh
 
   gpg --auto-key-locate wkd --search-keys dvzrv@archlinux.org
 
 
 Afterwards a tag can be verified from a clone of this repository:
 
-  .. code:: bash
+.. code:: sh
 
   git verify-tag <tag>