provide the minetest game as submodule, so we can work unified in sync

* change README to my repos
* change git ignore to include necessary
* aded one module the minetest game
* set default game to minetest

.gitignore

@@ -37,6 +37,7 @@ gtags.files
 /bin/
 /games/*
 !/games/minimal/
+!/games/minetest/
 /cache
 /textures/*
 !/textures/base/

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "games/minetest"]
+	path = games/minetest
+	url = https://codeberg.org/minenux/minetest-game-minetest.git

README.md

@@ -114,14 +114,10 @@ Locations:
 
 Where each location is on each platform:
 
-* Windows .zip / RUN_IN_PLACE source:
+* Others OS's / RUN_IN_PLACE source:
     * `bin`   = `bin`
     * `share` = `.`
     * `user`  = `.`
-* Windows installed:
-    * `bin`   = `C:\Program Files\Minetest5\bin (Depends on the install location)`
-    * `share` = `C:\Program Files\Minetest5 (Depends on the install location)`
-    * `user`  = `%APPDATA%\Minetest5`
 * Linux installed:
     * `bin`   = `/usr/bin`
     * `share` = `/usr/share/minetest5`
@@ -142,7 +138,7 @@ Configuration file
 - A specific file can be specified on the command line:
     `--config <path-to-file>`
 - A run-in-place build will look for the configuration file in
-    `location_of_exe/../minetest5.conf` and also `location_of_exe/../../minetest5.conf`
+    `location_of_bin/../minetest5.conf` and also `location_of_bin/../../minetest5.conf`
 
 Command-line options
 --------------------
@@ -196,30 +192,30 @@ For Fedora users:
 
 Download source (this is the URL to the latest of source repository, which might not work at all times) using Git:
 
-    git clone --depth 1 https://github.com/minetest/minetest.git
+    git clone --recursive https://codeberg.org/minenux/minetest-engine.git minetest
     cd minetest
 
 Download minetest_game (otherwise only the "Minimal development test" game is available) using Git:
 
-    git clone --depth 1 https://github.com/minetest/minetest_game.git games/minetest_game
+    git submodule init && git submodule update --recursive
 
 Download source, without using Git:
 
-    wget https://github.com/minetest/minetest/archive/master.tar.gz
-    tar xf master.tar.gz
-    cd minetest-master
+    wget https://codeberg.org/minenux/minetest-engine/archive/stable-5.2.tar.gz
+    tar xf stable-5.2.tar.gz
+    cd stable-5.2
 
 Download minetest_game, without using Git:
 
     cd games/
-    wget https://github.com/minetest/minetest_game/archive/master.tar.gz
-    tar xf master.tar.gz
-    mv minetest_game-master minetest_game
+    wget https://codeberg.org/minenux/minetest-game-minetest/archive/stable-5.2.tar.gz
+    tar xf stable-5.2.tar.gz
+    mv minetest-game-minetest_stable-5.2 minetest
     cd ..
 
 #### Build
 
-Build a version that runs directly from the source directory:
+Build a version that runs directly from the source directory there program are:
 
     cmake . -DRUN_IN_PLACE=TRUE
     make -j$(nproc)
@@ -324,7 +320,6 @@ Library specific options:
 
 Docker
 ------
-We provide Minetest server Docker images using the GitLab mirror registry.
 
 Images are built on each commit and available using the following tag scheme:
 

games/minetest

@@ -0,0 +1 @@
+Subproject commit 0e0ea932efc47ec4658b601445b7520e410ec727

src/defaultsettings.cpp

@@ -345,7 +345,7 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("max_simultaneous_block_sends_per_client", "40");
 	settings->setDefault("time_send_interval", "5");
 
-	settings->setDefault("default_game", lowercase(PROJECT_NAME) + std::to_string(VERSION_MAJOR));
+	settings->setDefault("default_game", lowercase(PROJECT_NAME) + std::to_string(VERSION_MAJOR)); // minetst 5 is renamed in cmake at install as minetest
 	settings->setDefault("motd", "");
 	settings->setDefault("max_users", "15");
 	settings->setDefault("creative_mode", "false");