doc/builders/packages/ibus.xml: Convert to markdown

Signed-off-by: Bryan A. S <[e-mail]>

doc/builders/packages/ibus.section.md

···
+# ibus-engines.typing-booster {#sec-ibus-typing-booster}
+
+This package is an ibus-based completion method to speed up typing.
+
+## Activating the engine {#sec-ibus-typing-booster-activate}
+
+IBus needs to be configured accordingly to activate `typing-booster`. The configuration depends on the desktop manager in use. For detailed instructions, please refer to the [upstream docs](https://mike-fabian.github.io/ibus-typing-booster/documentation.html).
+
+On NixOS you need to explicitly enable `ibus` with given engines before customizing your desktop to use `typing-booster`. This can be achieved using the `ibus` module:
+
+```nix
+{ pkgs, ... }: {
+  i18n.inputMethod = {
+    enabled = "ibus";
+    ibus.engines = with pkgs.ibus-engines; [ typing-booster ];
+  };
+}
+```
+
+## Using custom hunspell dictionaries {#sec-ibus-typing-booster-customize-hunspell}
+
+The IBus engine is based on `hunspell` to support completion in many languages. By default the dictionaries `de-de`, `en-us`, `fr-moderne` `es-es`, `it-it`, `sv-se` and `sv-fi` are in use. To add another dictionary, the package can be overridden like this:
+
+```nix
+ibus-engines.typing-booster.override { langs = [ "de-at" "en-gb" ]; }
+```
+
+_Note: each language passed to `langs` must be an attribute name in `pkgs.hunspellDicts`._
+
+## Built-in emoji picker {#sec-ibus-typing-booster-emoji-picker}
+
+The `ibus-engines.typing-booster` package contains a program named `emoji-picker`. To display all emojis correctly, a special font such as `noto-fonts-emoji` is needed:
+
+On NixOS it can be installed using the following expression:
+
+```nix
+{ pkgs, ... }: { fonts.fonts = with pkgs; [ noto-fonts-emoji ]; }
+```

doc/builders/packages/ibus.xml

···
-<section xmlns="http://docbook.org/ns/docbook"
-         xmlns:xlink="http://www.w3.org/1999/xlink"
-         xml:id="sec-ibus-typing-booster">
- <title>ibus-engines.typing-booster</title>
-
- <para>
-  This package is an ibus-based completion method to speed up typing.
- </para>
-
- <section xml:id="sec-ibus-typing-booster-activate">
-  <title>Activating the engine</title>
-
-  <para>
-   IBus needs to be configured accordingly to activate <literal>typing-booster</literal>. The configuration depends on the desktop manager in use. For detailed instructions, please refer to the <link xlink:href="https://mike-fabian.github.io/ibus-typing-booster/documentation.html">upstream docs</link>.
-  </para>
-
-  <para>
-   On NixOS you need to explicitly enable <literal>ibus</literal> with given engines before customizing your desktop to use <literal>typing-booster</literal>. This can be achieved using the <literal>ibus</literal> module:
-<programlisting>{ pkgs, ... }: {
-  i18n.inputMethod = {
-    enabled = "ibus";
-    ibus.engines = with pkgs.ibus-engines; [ typing-booster ];
-  };
-}</programlisting>
-  </para>
- </section>
-
- <section xml:id="sec-ibus-typing-booster-customize-hunspell">
-  <title>Using custom hunspell dictionaries</title>
-
-  <para>
-   The IBus engine is based on <literal>hunspell</literal> to support completion in many languages. By default the dictionaries <literal>de-de</literal>, <literal>en-us</literal>, <literal>fr-moderne</literal> <literal>es-es</literal>, <literal>it-it</literal>, <literal>sv-se</literal> and <literal>sv-fi</literal> are in use. To add another dictionary, the package can be overridden like this:
-<programlisting>ibus-engines.typing-booster.override {
-  langs = [ "de-at" "en-gb" ];
-}</programlisting>
-  </para>
-
-  <para>
-   <emphasis>Note: each language passed to <literal>langs</literal> must be an attribute name in <literal>pkgs.hunspellDicts</literal>.</emphasis>
-  </para>
- </section>
-
- <section xml:id="sec-ibus-typing-booster-emoji-picker">
-  <title>Built-in emoji picker</title>
-
-  <para>
-   The <literal>ibus-engines.typing-booster</literal> package contains a program named <literal>emoji-picker</literal>. To display all emojis correctly, a special font such as <literal>noto-fonts-emoji</literal> is needed:
-  </para>
-
-  <para>
-   On NixOS it can be installed using the following expression:
-<programlisting>{ pkgs, ... }: {
-  fonts.fonts = with pkgs; [ noto-fonts-emoji ];
-}</programlisting>
-  </para>
- </section>
-</section>

doc/builders/packages/index.xml

···
  <xi:include href="emacs.section.xml" />
  <xi:include href="firefox.section.xml" />
  <xi:include href="fish.section.xml" />
- <xi:include href="ibus.xml" />
+ <xi:include href="ibus.section.xml" />
  <xi:include href="kakoune.section.xml" />
  <xi:include href="linux.section.xml" />
  <xi:include href="locales.section.xml" />