Update screenshots and files that reference them

The screenshots are more recent (including some new ones).

The welcome email images have not been updated as some things have to be
answered before that can be done.

The current files were renamed to be shorter as well.

quick-start.md

@@ -1,4 +1,4 @@
-This is quick start guide is version **28.0.0 2025-02-27**.
+This quick start guide is version **28.0.1 2025-03-01**.
 
 <div id="enter_questions">
 <div id="enter">
@@ -86,7 +86,7 @@ Using the **Username** and **Initial password** you receive via email in
 from when one of the [IOCCC judges](judges.html) sent that email.
 
 **NOTE**: The [IOCCC submit server](https://submit.ioccc.org)
-is only ready for submissions **ONLY WHEN THE CONTEST IS [open](faq.html#open)**.
+is ready for submissions **ONLY WHEN THE CONTEST IS [open](faq.html#open)**.
 
 Please visit the "**[change your submit server initial password](next/pw-change.html)**" page for detailed instructions.
 
@@ -150,7 +150,7 @@ Three files are required to exist in `topdir`:
 * `Makefile`
 
     Makefile to build (make all) and clean up (make clean & make clobber) as well
-    as the other required rules
+    as the other required files
 
 * `remarks.md`
 
@@ -162,10 +162,10 @@ Three files are required to exist in `topdir`:
 
 If the `mkiocccentry` tool indicates that there is a problem with your
 submission, especially if it identifies a [Rule 2](next/rules.html#rule2), or
-any other rule, related problem, you are **strongly** encouraged to revise and
+any other [rule](next/rules.html), related problem, you are **strongly** encouraged to revise and
 correct your entry and then re-run the `mkiocccentry` tool.
 
-If you choose to risk violating rules, be sure and explain your reason
+If you choose to risk violating [Rules](next/rules.html), be sure and explain your reason
 for doing so in your `remarks.md` file.
 
 See also [Rule 17](next/rules.html#rule17)!
@@ -204,7 +204,7 @@ any changes: making it clear to the [IOCCC judges](judges.html) that you intend
 to replace the older upload.
 
 **IMPORTANT NOTE**: The [IOCCC submit server](https://submit.ioccc.org)
-is only ready for submissions
+is ready for submissions
 **ONLY WHEN THE CONTEST IS [open](faq.html#open)**.
 
 See the "**[current status of the IOCCC](status.html)**" page for details on the contest status.