Break up text about required files in guidelines

This should (hopefully) make it easier to read.

next/guidelines.md

@@ -493,21 +493,36 @@ Jump to: [top](#)
 The maximum total number of files that may be submitted has changed to 39 files.
 However, of those files, 5 are mandatory (`prog.c`, `Makefile`, `remarks.md` and
 the two JSON files generated by `mkiocccentry(1)`, `.info.json` and
-`.auth.json`). Additionally, three of the files in the limit **MUST** be
-specific file(name)s: the **OPTIONAL** submission files, which are `prog.alt.c`,
-`try.sh` and `try.alt.sh`, or else they **WILL** count as an extra file. Of
-course, if you use the optional filenames without the files being their
-intended, that would be an abuse of rules.
-For more details on the optional files, see the
-FAQ on the "[try.sh script system](../faq.html#try_script)"
-and the
-FAQ on "[alt code](../faq.html#alt_code)".
+`.auth.json`).
+</p>
+
+<p class="leftbar">
+Additionally, three of the files, if included, **MUST** be
+specific file(name)s and in the top level directory, or they will be counted as
+an extra file, not an optional file.
+</p>
+
+<p class="leftbar">
+In particular, any file that is not `prog.c`, `Makefile`, `remarks.md`,
+`try.sh`, `prog.alt.c` or `try.alt.sh` will be counted as an extra file, and if
+`try.sh`, `prog.alt.c` or `try.alt.sh` are not in the top level directory they
+will also be counted as an extra file. The `.info.json` and `.auth.json` files
+are not counted as extra files but are required.
 </p>
 
 <p class="leftbar">
 In other words, the actual amount of **EXTRA** files is 31.
 </p>
 
+<p class="leftbar">
+Of course, if you use the optional filenames without
+the files being our intended use, in order to get past the file limit, that
+would be an abuse of rules.  For more details on the optional files, see the
+FAQ on the "[try.sh script system](../faq.html#try_script)"
+and the
+FAQ on "[alt code](../faq.html#alt_code)".
+</p>
+
 <p class="leftbar">
 If you do need to include more files, you may do so by including as an extra
 file, a tarball. This does **NOT** have to pass `txzchk(1)` tests; only the
@@ -521,9 +536,9 @@ said tarball(s), the make `clobber` rule **MUST** remove them.
 </p>
 
 <p class="leftbar">
-**IMPORTANT REMINDER**: make **SURE** your tarball DOES **NOT** reveal who you are!
-The `mkiocccentry(1)` tool creates v7 format tarballs to prevent this. You can
-do so like:
+**IMPORTANT REMINDER**: make **SURE** your tarball does **NOT** reveal who you are!
+The `mkiocccentry(1)` tool creates a v7 format tarball to prevent this. You can
+do the same like:
 </p>
 
 ``` <!---sh-->