Fix spelling mistakes found by codespell

docs/index.htm

@@ -127,7 +127,7 @@
   <h1>Contributor Notes</h1>
 
   <p>Contributor notes contain information useful only to wxWidgets developers
-     for the maintainance of the project:</p>
+     for the maintenance of the project:</p>
 
   <ul>
     <li><a href="contributing/">Index of Contributor Notes</a></li>

docs/msw/install.md

@@ -299,7 +299,7 @@ debug mode, edit makefile.bcc and change /aa to /Tpe in link commands.
 Using the Debugger and IDE in BDS or Turbo Explorer
 ---------------------------------------------------
 
-Doubleclick / open \%WXWIN\%\samples\minimal\borland.bdsproj. The current version
+Double-click / open \%WXWIN\%\samples\minimal\borland.bdsproj. The current version
 is to be used with a dynamic build of wxWidgets-made by running
 make -f Makefile.bcc -DBUILD=debug -DSHARED=1
 in wxWidgets\build\msw. You also need the `wxWidgets\lib\bcc_dll`

docs/wine/install.txt

@@ -367,7 +367,7 @@ configure --disable-static --enable-shared --enable-gui \
  --with-libjpeg --enable-debug_cntxt
 
 Compiling a sample won't work yet because 'winebuild' needs
-to be called, and the resuling C file compiled and linked.
+to be called, and the resulting C file compiled and linked.
 Plus, Windows DLLs need to be imported.
 
 Note that the documentation on the WINE web site on using