Improve the README.md files

The top of each file now link to the other README.md files, letting one
navigate more easily to the information desired.

README.md

@@ -17,29 +17,30 @@ Contest](https://www.ioccc.org)), originally in the [mkiocccentry
 repo](https://github.com/ioccc-src/mkiocccentry), but we provide it here so that
 anyone can use it.
 
-As a stand-alone tool, `jparse` itself is less useful, except for validating
-JSON documents (as a file on disk or stdin or even over a network, or as a
-string), and as a simple example that uses the library. On the other hand, the
-`jparse` library is much more useful because you can integrate it into your own
-applications and work with the parsed tree(s).
+This document discusses the dependencies (and how to obtain, compile and install
+them), how to compile and install (as well as uninstall, should you need to deobfuscate
+your system :-) ) the `jparse` tools and library, how to report bugs and a brief
+history on `jparse` as a whole.
 
 For information on our utilities, including `jparse(1)` but also tools to
-encode/decode JSON decoded/encoded strings, we refer you to the
+encode/decode JSON decoded/encoded strings (others of different applications are
+in the pipeline as well), we refer you to the
 [jparse_util_README.md](https://github.com/xexyl/jparse/blob/master/jparse_util_README.md)
 file.
 
-For information on using the `jparse` library, we refer you to the file
+As a stand-alone tool, `jparse` itself is less useful, except for validating
+JSON documents (as a file on disk or stdin or even over a network, or as a
+string), and as a simple example that uses the library.
+
+The `jparse` library is much more useful for C programmers because you can
+integrate it into your own applications and work with the parsed tree(s). For
+information on using the `jparse` library, we refer you to the file
 [jparse_library_README.md](https://github.com/xexyl/jparse/blob/master/jparse_library_README.md).
 
 We also do recommend that you read the
 [json_README.md](https://github.com/xexyl/jparse/blob/master/json_README.md)
 document to better understand the JSON terms used in this repo.
 
-This document discusses the dependencies (and how to obtain, compile and install
-them), how to compile and install (as well as uninstall, should you need to deobfuscate
-your system :-) ) the tools and library, in order to use it, how to report bugs
-and a brief history on `jparse` as a whole.
-
 For information on our testing suite, we refer you to the
 [test_jparse/README.md](https://github.com/xexyl/jparse/blob/master/test_jparse/README.md),
 but this is mostly for repo maintainers or those who are interested in how we

jparse_library_README.md

@@ -5,6 +5,18 @@ how to use it in a C application that needs to parse and process valid JSON
 documents, whether in a file (on disk or stdin, or even over a network) or a
 string.
 
+For information on the `jparse` repo, see the [jparse repo
+README.md](https://github.com/xexyl/jparse/blob/master/README.md).
+
+For information on the `jparse` utilities see
+[jparse_util_README.md](https://github.com/xexyl/jparse/blob/master/jparse_util_README.md).
+
+For information on the testing suite see
+[test_jparse/README.md](https://github.com/xexyl/jparse/blob/master/test_jparse/README.md).
+
+We also do recommend that you read the
+[json_README.md](https://github.com/xexyl/jparse/blob/master/json_README.md)
+document to better understand the JSON terms used in this repo.
 
 # Table of Contents
 

jparse_util_README.md

@@ -1,5 +1,21 @@
 # Command line utilities that parse, read and process JSON in different ways
 
+We provide a number of utilities that work with JSON, which we describe below.
+Others are in the pipeline and when they are developed this file will document
+them as well. These utilities are described below.
+
+If you want more information on the `jparse` repo, see the [jparse repo
+README.md](https://github.com/xexyl/jparse/blob/master/README.md).
+
+For information on the `jparse` library, see
+[jparse_library_README.md](https://github.com/xexyl/jparse/blob/master/jparse_library_README.md).
+
+For information on the testing suite see
+[test_jparse/README.md](https://github.com/xexyl/jparse/blob/master/test_jparse/README.md).
+
+We also do recommend that you read the
+[json_README.md](https://github.com/xexyl/jparse/blob/master/json_README.md)
+document to better understand the JSON terms used in this repo.
 
 # Table of Contents
 

test_jparse/README.md

@@ -4,6 +4,21 @@ Here we briefly describe for you our testing suite, for those who are
 interested, though some of it is only relevant to repo maintainers (that is put
 at the end of the file for that reason).
 
+If you are looking for information on the `jparse` repo, see the [jparse repo
+README.md](https://github.com/xexyl/jparse/blob/master/README.md).
+
+For information on the `jparse` utilities see
+[jparse_util_README.md](https://github.com/xexyl/jparse/blob/master/jparse_util_README.md).
+
+For information on the `jparse` library, see
+[jparse_library_README.md](https://github.com/xexyl/jparse/blob/master/jparse_library_README.md).
+
+We also do recommend that you read the
+[json_README.md](https://github.com/xexyl/jparse/blob/master/json_README.md)
+document to better understand the JSON terms used in this repo.
+
+
+
 # [test_jparse](https://github.com/xexyl/jparse/tree/master/test_jparse)
 
 In this directory we have a [subdirectory with test JSON