Update readmes for new font system

There were still some TODOs left open for the font changes, and I also
made a dedicated README.txt in the fonts directory.

desktop_version/lang/README-programmers.txt

@@ -1,6 +1,6 @@
 === I N T R O D U C T I O N ===
 
-This fill will explain what you need to know when maintaining translations of VVVVVV (like adding new strings and syncing them across languages).
+This file will explain what you need to know when maintaining translations of VVVVVV (like adding new strings and syncing them across languages).
 
 
 
@@ -16,6 +16,81 @@ The max value indicates how many characters of space there is for the text, and
 
 
 
+=== T E X T   P R I N T I N G ===
+
+These are the text printing functions:
+
+ font::print(flags, x, y, text, r, g, b)
+ font::print(flags, x, y, text, r, g, b, linespacing = -1, maxwidth = -1)
+
+The flags argument can be 0, or a set of flags that do things like centering, enlarging, etc.
+
+Some examples (can also be found in Font.h):
+
+ Standard print
+     font::print(0, 50, 50, "Hello world!", 255, 255, 255);
+
+ Centered text
+     font::print(PR_CEN, -1, 50, "Hello world!", 255, 255, 255);
+     (set X to -1, unless you want to center *around* X)
+
+ 2x scale
+     font::print(PR_2X, 50, 50, "V", 255, 255, 255);
+
+ Centered 2x scale
+     font::print(PR_CEN | PR_2X, -1, 50, "V", 255, 255, 255);
+
+ Right-aligned 3x scale with a border around it
+     font::print(PR_RIGHT | PR_3X | PR_BOR, 320, 50, "V", 255, 255, 255);
+
+ Wordwrapped centered text
+     font::print_wrap(PR_CEN, -1, 50, "Hello world, this will wordwrap to the screen width", 255, 255, 255);
+
+A not-technically-exhaustive list of all flags (which are defined in Font.h):
+
+- PR_2X/PR_3X/.../PR_8X  Print at larger scale (PR_1X is default)
+- PR_FONT_INTERFACE      [DEFAULT] Use interface (VVVVVV language) font
+- PR_FONT_LEVEL          Use level-specific font (room names, cutscenes, etc)
+- PR_FONT_8X8            Use 8x8 font no matter what
+- PR_BRIGHTNESS(value)   Use this brightness 0-255 (this value is mixed with
+                         r, g and b for an alpha effect)
+- PR_BOR                 Draw a black border around the text
+- PR_LEFT                [DEFAULT] Left-align text/place at X coordinate
+- PR_CEN                 Center-align text relative to X (X is center)
+                         or to screen if X == -1
+- PR_RIGHT               Right-align text to X
+                         (X is now the right border, not left border)
+- PR_CJK_CEN             [DEFAULT] Large fonts (Chinese/Japanese/Korean) should
+                         stick out on top and bottom compared to 8x8 font
+- PR_CJK_LOW             Larger fonts should stick out fully on the bottom
+                         (draw at Y)
+- PR_CJK_HIGH            Larger fonts should stick out fully on the top
+
+
+
+=== S T R I N G   F O R M A T T I N G ===
+
+Instead of sprintf-family functions, it is preferred to use VVVVVV's own formatting system, VFormat.
+
+Strings sometimes have placeholders, which look like {name} or {name|flags}. For example, "{n_trinkets} of {max_trinkets}".
+
+Placeholders can also have "flags" that modify their behavior. These can be added or removed in the translation as needed. Flags are separated by | (pipe).
+
+For more info, see the documentation at the top of VFormat.h.
+
+Full example:
+
+ char buffer[100];
+ vformat_buf(buffer, sizeof(buffer),
+     "{crewmate} got {number} out of {total} trinkets in {m}:{s|digits=2}.{ms|digits=3}",
+     "number:int, total:int, crewmate:str, m:int, s:int, ms:int",
+     2, 20, "Vermilion", 2, 3, 1
+ );
+
+ => "Vermilion got 2 out of 20 trinkets in 2:03.001"
+
+
+
 === T R A N S L A T O R   M E N U ===
 
 The translator menu has options for both translators and maintainers - it allows testing menus, translating room names within the game, syncing all language files with the English template files, getting statistics on translation progress, and more.
@@ -44,29 +119,6 @@ These files are untouched by the syncing feature.
 
 
 
-=== S T R I N G   F O R M A T T I N G ===
-
-Instead of sprintf-family functions, it is preferred to use VVVVVV's own formatting system, VFormat.
-
-Strings sometimes have placeholders, which look like {name} or {name|flags}. For example, "{n_trinkets} of {max_trinkets}".
-
-Placeholders can also have "flags" that modify their behavior. These can be added or removed in the translation as needed. Flags are separated by | (pipe).
-
-For more info, see the documentation at the top of VFormat.h.
-
-Full example:
-
- char buffer[100];
- vformat_buf(buffer, sizeof(buffer),
-     "{crewmate} got {number} out of {total} trinkets in {m}:{s|digits=2}.{ms|digits=3}",
-     "number:int, total:int, crewmate:str, m:int, s:int, ms:int",
-     2, 20, "Vermilion", 2, 3, 1
- );
-
- => "Vermilion got 2 out of 20 trinkets in 2:03.001"
-
-
-
 === F I L E S ===
 
 * meta.xml: This file contains some general information about a translation.