Update README.txt

README.txt

@@ -7,12 +7,24 @@ See: <http://semver.org/>
 Description
 ===========
 This mod adds basic support for mana to Minetest.
-It provides a simple API to set, get, add and subtract the mana (and maximum) mana of any player.
-The mod also automatically allows for regenerating Mana automatically.
+
+Each player will have an additional attribute: Mana. To be precise:
+
+- Current mana reserves: How much mana the player currently has
+- Maximum possible mana: How much mana the player can have at maximum
+- Mana regeneration amont: How much mana will be generated each “mana tick” (default 0.2 seconds)
+
 By default, each player spawns with 0/200 mana, and regenerates 1 mana per fifth of a second. All
 these values can be configured with the server settings (`minetest.conf`) and it is highly advised to do
 so if you plan to integrate this mod into a subgame.
 
+The mana regeneration rate (the “mana tick”) is a global setting and is *not* configured on a
+per-player basis.
+
+The mod provides a simple API to set, get, add and subtract the mana (and maximum) mana of any player, and
+for setting the regeneration amount. Note that this mod itself does *not* change the gameplay in a meaningful
+way. You should install other mods which use the Mana mod as a dependency.
+
 The API documentation is in the file API.md.
 
 If the mod “HUD bars” [hudbars] is installed, a blue bar will be added to the HUD showing the player's mana reserves.