Index: ARCHITECTURE
==================================================================
--- ARCHITECTURE
+++ ARCHITECTURE
@@ -47,12 +47,10 @@
 (locate_me) which is called by exec.c.
 
 hash.c,hash.h: A set of functions for computing cryptographic hashes.
 These functions can be used outside of Free Hero Mesh, too. If you want
 to add new algorithms, use the multicodec table to assign the numbers.
-(Currently they are not used for anything, but some planned features may
-use it in future.)
 
 imgtofhm.c: A separate program (not compiled into Free Hero Mesh) for
 batch importing pictures into Free Hero Mesh.
 
 instruc,instruc.h,instruc.js: The "instruc" file contains a list of the

Index: README
==================================================================
--- README
+++ README
@@ -170,14 +170,14 @@
 
 * default.heromeshrc: An example configuration file which you can customize
 for your own use. You should at least set the proper paths to the files.
 
 * hash.c and hash.h: A library for cryptographic hash calculation. This is
-compiled into Free Hero Mesh, but as of this writing is not used. It can
-also be used in other programs independently fo Free Hero Mesh. (Note that
-some algorithms it implements are considered to be insecure, but are
-included for compatibility with formats/protocols that use them.)
+compiled into Free Hero Mesh, but can also be used in other programs
+independently of Free Hero Mesh. (Note that some algorithms it implements
+are considered to be insecure, but are included for compatibility with
+formats/protocols that use them.)
 
 * imgtofhm.c: Converts pictures into the Free Hero Mesh format. The command
 line arguments are: the maximum number of pictures, the lump name prefix,
 and then the transparency colour (in hex format) (optional). It receives
 the pictures in farbfeld format in a vertical strip from stdin, and writes

Index: TODO
==================================================================
--- TODO
+++ TODO
@@ -60,5 +60,6 @@
   * Xsok
   * PuzzleScript (limited; not everything is or will be capable)
   * Sokoban
   * Puzzle Boy
   * Pitman/Catrap
+* Improve build system

Index: man6/heromesh.6
==================================================================
--- man6/heromesh.6
+++ man6/heromesh.6
@@ -1,10 +1,10 @@
 .TH HEROMESH 6 "December 22, 2020"
 .so man6/heromesh.str
 .SH NAME
 heromesh \- Free Hero Mesh (a puzzle game engine)
-.SH SYNOPSYS
+.SH SYNOPSIS
 .B heromesh
 .RI "[" "options" "] " "basename" " [" "resources" "]"
 .SH DESCRIPTION
 Free Hero Mesh is a puzzle game engine, for turn-based grid-based puzzle games.
 It is fully deterministic and depends only on the sequence of inputs, not on time or randomness.