MISC: Remove archlinux package build and update doc

CHANGELOG.md

@@ -7,6 +7,8 @@
 - Fix dl process with the repo module
 - Add window icon
 - Add the Klkt client (notification for desktops) to the lektor project
+- Add AppImage builds
+- Remove archlinux package support (replaced by AppImage)
 - Bug fix: reduce libs to link to lkt (dear autoconf...)
 - Bug fix: fix #84, next and prev commands didn't worked correctly
 - Bug fix: fix deadlock on next kara (the new aerobrin...)

PKGBUILD

-# Maintainer: Maël 'Kubat' MARTIN <mael.martin31@gmail.com>
-pkgname=lektor
-pkgver=mk7.1109.02c1203
-pkgrel=1
-pkgdesc="The lektor kara player, from the Bakaclub"
-arch=(x86_64 i686)
-url="https://git.iiens.net/martin2018/lektor.git"
-license=('ISC')
-groups=(bakaclub)
-depends=('sqlite3>=3.31.0' curl json-c mpv sdl2)
-makedepends=(git bash 'gcc>=8.1')
-provides=(lektor)
-changelog=CHANGELOG.md
-source=()
-
-function pkgver ()
-{
-    printf "mk7.%s.%s" "$(git rev-list --count HEAD)" "$(git rev-parse --short HEAD)"
-}
-
-function build ()
-{
-    [ -d $startdir/build ] || mkdir $startdir/build
-    cd $startdir/build
-    ../configure --prefix=/usr/local --enable-static-module CC=gcc
-    make
-}
-
-function package ()
-{
-    cd $startdir/build
-    make DESTDIR="$pkgdir/" install
-}

README.md

@@ -113,9 +113,9 @@ is WIP.
 If you are using special modules or are compiling lektor without static modules,
 you may set their **absolute path** inside the lektor's config file.
 
-On archlinux, you need only to install the package: `makepkg -si`. To generate
-AppImages, add `enable-appimage` to the `configure` line. Note that doing so
-will override any defined prefix.
+To generate AppImages, add `enable-appimage` to the `configure` line. Note that
+doing so will override any defined prefix. Note that the only supported
+distribution methode is AppImage.
 
 > **Important note**: if you are building using WSL, `lektord` will likely not
 launch, because `XDG_RUNTIME_DIR` is not defined here. This folder is