update README.md with instructions on installing or creating sdebs

Signed-off-by: jeffmerkey <jeffmerkey@gmail.com>

README

@@ -177,6 +177,19 @@ or Ubuntu Linux distributions:
 _(Note: Debbuild installs the source code files in /root/debbuild/ as
 top directory)_
 
+One item of note is that SDEB packages are actually just tar.gz archives
+renamed with an .sdeb file extension and with the files organized into a
+SPECS and SOURCES directory tree structure. Subsequently, an SDEB can
+also be extracted and installed with the _tar -xvf command_ or the files
+listed with the _tar -tvf command_:
+
+    [root@localhost getssl]# tar -tvf /root/debbuild/SDEBS/getssl-2.47-1.sdeb 
+    -rw-r--r-- root/root   1772110 2022-10-12 20:42 SOURCES/getssl-2.47.tar.gz
+    -rw-r--r-- root/root       192 2022-08-02 15:02 SOURCES/getssl.crontab
+    -rw-r--r-- root/root       126 2022-08-02 15:02 SOURCES/getssl.logrotate
+    -rw-r--r-- root/root      1537 2022-08-02 15:02 SPECS/getssl.spec
+    [root@localhost getssl]# 
+
 For building or rebuilding RPMS or DEB Packages after you have installed
 the associated source packages on your platform, refer to the following:
 

README.md

@@ -158,6 +158,17 @@ debbuild -i getssl-2.47-1.sdeb
 ```
 *(Note: Debbuild installs the source code files in /root/debbuild/ as top directory)*
 
+One item of note is that SDEB packages are actually just tar.gz archives renamed with an .sdeb file extension and with the files organized into a SPECS and SOURCES directory tree structure.  Subsequently, an SDEB can also be extracted and installed with the *tar -xvf command* or the files listed with the *tar -tvf command*:
+
+```sh
+[root@localhost getssl]# tar -tvf /root/debbuild/SDEBS/getssl-2.47-1.sdeb 
+-rw-r--r-- root/root   1772110 2022-10-12 20:42 SOURCES/getssl-2.47.tar.gz
+-rw-r--r-- root/root       192 2022-08-02 15:02 SOURCES/getssl.crontab
+-rw-r--r-- root/root       126 2022-08-02 15:02 SOURCES/getssl.logrotate
+-rw-r--r-- root/root      1537 2022-08-02 15:02 SPECS/getssl.spec
+[root@localhost getssl]# 
+```
+
 For building or rebuilding RPMS or DEB Packages after you have installed the associated source packages on your platform, refer to the following:
 
 - [Building getssl as an RPM Package (Redhat/CentOS/SuSe/Oracle/AWS)](#building-as-an-rpm-package)