Make the example archive non solid.

Examples/DownloadFiles.iss

@@ -44,7 +44,7 @@ Source: "https://jrsoftware.org/download.php/iscrypt.dll?dontcount=1"; DestName:
 ; This archive will be downloaded and verified at the start of the Preparing to Install Step
 ; It is then extracted normally during the actual installation process
 Source: "https://jrsoftware.org/download.php/myprog-extrareadmes.7z"; DestName: "MyProg.ExtraReadmes.7z"; DestDir: "{app}"; \
-  ExternalSize: 269; Flags: external download extractarchive recursesubdirs ignoreversion issigverify
+  ExternalSize: 275; Flags: external download extractarchive recursesubdirs ignoreversion issigverify
 ; This archive will be downloaded and extracted without verificaton
 Source: "https://github.com/jrsoftware/issrc/archive/refs/heads/main.zip"; DestName: "issrc-main.zip"; DestDir: "{app}"; \
   ExternalSize: 15_000_000; Flags: external download extractarchive recursesubdirs ignoreversion

whatsnew.htm

@@ -100,7 +100,7 @@ Source: "{tmp}\MyProg-ExtraReadmes.7z"; DestDir: "{app}"; \
 Source: "https://jrsoftware.org/download.php/is.exe?dontcount=1"; DestName: "innosetup-latest.exe"; DestDir: "{app}"; \
   ExternalSize: 7_000_000; Flags: external download ignoreversion
 Source: "https://jrsoftware.org/download.php/myprog-extrareadmes.7z"; DestName: "MyProg.ExtraReadmes.7z"; DestDir: "{app}"; \
-  ExternalSize: 269; Flags: external download extractarchive ignoreversion</pre>
+  ExternalSize: 275; Flags: external download extractarchive ignoreversion</pre>
     </li>
     <li>Added example script <i>DownloadFiles.iss</i> to demonstrate how to use a single <tt>[Files]</tt> entry to download a file, or to download and extract an archive, with verification.</li>
   </ul>