Fix line breaks, reduce ambiguity ("game" -> "Game"), and tag Game and mod

\\ does not work as line break in Markdown
The mod collection called Game can easily be confused with common meanings of game
Game and mod are described in the "What are Games and Mods?" chapter, so these are highlighted.

_en/basics/getting_started.md

@@ -27,21 +27,21 @@ creating mods.
 The power of Minetest is the ability to easily develop games without the need
 to create your own voxel graphics, voxel algorithms, or fancy networking code.
 
-In Minetest, a game is a collection of modules which work together to provide the
+In Minetest, a **Game** is a collection of modules which work together to provide the
 content and behaviour of a game.
-A module, commonly known as a mod, is a collection of scripts and resources.
-It's possible to make a game using only one mod, but this is rarely done because it
+A module, commonly known as a **mod**, is a collection of scripts and resources.
+It's possible to make a Game using only one mod, but this is rarely done because it
 reduces the ease by which parts of the game can be adjusted and replaced
 independently of others.
 
-It's also possible to distribute mods outside of a game, in which case they
+It's also possible to distribute mods outside of a Game, in which case they
 are also *mods* in the more traditional sense - modifications. These mods adjust
-or extend the features of a game.
+or extend the features of a Game.
 
-Both the mods contained in a game and third-party mods use the same API.
+Both the mods contained in a Game and third-party mods use the same API.
 
 This book will cover the main parts of the Minetest API,
-and is applicable for both game developers and modders.
+and is applicable for both Game developers and modders.
 
 
 ## Where are mods stored?
@@ -55,7 +55,7 @@ mods. These locations are commonly called *mod load paths*.
 For a given world/save game, three mod locations are checked.
 They are, in order:
 
-1. Game mods. These are the mods that form the game that the world is running.
+1. Game mods. These are the mods that form the Game that the world is running.
    Eg: `minetest/games/minetest_game/mods/`, `/usr/share/minetest/games/minetest/`
 2. Global mods, the location to which mods are nearly always installed to.
    If in doubt, place them here.
@@ -67,7 +67,7 @@ They are, in order:
 Minetest will check the locations in the order given above. If it encounters a mod
 with a name the same as one found previously, the later mod will be loaded in place
 of the earlier mod.
-This means that you can override game mods by placing a mod with the same name
+This means that you can override Game mods by placing a mod with the same name
 in the global mod location.
 
 The actual location of each mod load path depends on what operating system you're
@@ -170,7 +170,7 @@ a player, but don't want to make them download each one individually.
     └── mymod (optional)
         └── ... mod files
 
-Please note that a modpack is not a *game*.
+Please note that a modpack is not a *Game*.
 Games have their own organisational structure which will be explained in the
 Games chapter.
 
@@ -206,10 +206,10 @@ minetest.register_node("mymod:node", {
     depends = default
 
 This mod has the name "mymod". It has three text files: init.lua, mod.conf,
-and depends.txt.\\
+and depends.txt. <br/>
 The script prints a message and then registers a node –
-which will be explained in the next chapter.\\
+which will be explained in the next chapter. <br/>
 There's a single dependency, the
 [default mod](https://content.minetest.net/metapackages/default/), which is
-usually found in Minetest Game.\\
+usually found in Minetest Game. <br/>
 There is also a texture in textures/ for the node.