WIP docs: commenting in player.c/player.h and README updates

src/docprogress.txt

@@ -1,10 +1,10 @@
 main.c - Done
 physics.c - Done, refine later
     physics.h - Done
-renderer.c - Done
-    renderer.h - Done
-player.c
-    player.h
+render.c - Done
+    render.h - Done
+player.c - Done
+    player.h - Done
 world.c
     world.h
 config.h

src/player.c

@@ -5,11 +5,15 @@
 
 #include "raylib.h"
 
+// let's a go!
+
 void UpdatePlayerControls(void)
 {
+    // if there isn't a player, you probably can't do much
     if (!player)
         return;
 
+    // if a key pressed, push player to the left
     if (IsKeyDown(KEY_A))
     {
         ApplyForce(
@@ -17,7 +21,7 @@ void UpdatePlayerControls(void)
             (Vector2){-PLAYER_FORCE, 0}
         );
     }
-
+    // if d key pressed, push player to the right
     if (IsKeyDown(KEY_D))
     {
         ApplyForce(
@@ -25,7 +29,7 @@ void UpdatePlayerControls(void)
             (Vector2){PLAYER_FORCE, 0}
         );
     }
-
+    // if sspace key pressed (and player isn't already jumping), push player upward
     if (IsGrounded(player) &&
         IsKeyPressed(KEY_SPACE))
     {

src/player.h

@@ -1,6 +1,8 @@
 #ifndef PLAYER_H
 #define PLAYER_H
 
+// FUNction declaration! yay!!!
+// run by main.c constantly to allow player input.
 void UpdatePlayerControls(void);
 
 #endif