Minor doc cleanup, update spelling checker

README.md

@@ -104,7 +104,7 @@ QPDF is known to build and pass its test suite with mingw (latest version tested
 
 QPDF's build system, inspired by [abuild](https://www.qbilt.org/abuild), can optionally use its own built-in rules rather than using libtool and obeying the compiler specified with configure.  This can be enabled by passing `--with-buildrules=buildrules` where buildrules corresponds to one of the `.mk` files (other than `rules.mk`) in the make directory. This should never be necessary on a UNIX system, but may be necessary on a Windows system.  See [README-windows.md](README-windows.md) for details.
 
-The QPDF package provides some executables and a software library.  A user manual can be found in the "doc" directory.  The docbook sources to the user manual can be found in the `manual` directory.
+The QPDF package provides some executables and a software library.  A user manual can be found in the "doc" directory.  The sources to the user manual can be found in the `manual` directory.
 
 The software library is just `libqpdf`, and all the header files are in the `qpdf` subdirectories of `include` and `libqpdf`. If you link statically with `-lqpdf`, then you will also need to link with `-lz` and `-ljpeg`. The shared qpdf library is linked with `-lz` and `-ljpeg`, none of qpdf's public header files directly include files from `libz`, and only `Pl_DCT.hh` includes files from `libjpeg`, so for most cases, qpdf's development files are self contained. If you need to use `Pl_DCT` in your application code, you will need to have the header files for some libjpeg distribution in your include path.
 

cSpell.json

@@ -35,6 +35,7 @@
     "bashcompinit",
     "berkenbilt",
     "binmode",
+    "bitstream",
     "blinearize",
     "boldseq",
     "bookinfo",
@@ -81,8 +82,6 @@
     "distclean",
     "distfiles",
     "ditems",
-    "docbook",
-    "docbookx",
     "docdir",
     "dohnal",
     "dqpdf",
@@ -185,6 +184,8 @@
     "jurczyk",
     "kgdl",
     "lastreleased",
+    "latexmk",
+    "latexpdf",
     "lbuf",
     "lcrypto",
     "ldflags",
@@ -217,6 +218,7 @@
     "makefiles",
     "masamichi",
     "mateusz",
+    "maxdepth",
     "mdash",
     "mkdir",
     "mkinstalldirs",
@@ -284,6 +286,7 @@
     "pbytes",
     "pclm",
     "pcre",
+    "pdflatex",
     "pdfs",
     "pdlin",
     "pfeifle",
@@ -364,7 +367,9 @@
     "rklength",
     "rpath",
     "rstream",
+    "runtest",
     "sahil",
+    "samp",
     "sarray",
     "scarff",
     "seekable",
@@ -396,12 +401,14 @@
     "syuu",
     "tbuf",
     "testcase",
+    "texlive",
     "tgen",
     "tiffcmp",
     "tmatrix",
     "tnum",
     "tobj",
     "tobjid",
+    "toctree",
     "toolchains",
     "transcoders",
     "trueroad",