diff --git a/README.md b/README.md
index 0e07730..e366159 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,46 @@ Bashbot [Documentation](https://github.com/topkecleon/telegram-bot-bash) and [Do
     * Customize Bashbot Environment
 * [Examples](examples/README.md)
 
+### Your really first bashbot in a nutshell
+To install and run bashbot you need acess to a linux/unix/bsd command line. If you don't know how to get accces to a linux/unix/bsd like command line you should stop reading here :-(
+
+In addition you need a [Telegram client](https://telegram.org) and a mobile phone to [register an account](https://telegramguide.com/create-a-telegram-account/).
+If you don't want to register for Telegram you should stop reading here ;-)
+
+After you're registered to Telegram send a message to [@botfather](https://telegram.me/botfather),
+[create a new Telegram Bot token](doc/1_firstbot.md) and write it down. You need the token to install the bot.
+
+Now open a linux/unix/bsd terminal and check if bash is installed: ```which bash && echo "bash installed!"```.
+If you get an error message bash is not installed.
+
+Create a new directory and change to it:  ```mkdir tbb; cd tbb``` and download the latest '*.tar.gz' file from
+[https://github.com/topkecleon/telegram-bot-bash/releases](https://github.com/topkecleon/telegram-bot-bash/releases). This can be done with the commands:
+```bash
+wget -q https://github.com/$(wget -q https://github.com/topkecleon/telegram-bot-bash/releases/latest -O - | egrep '/.*/.*/.*tar.gz' -o)
+```
+
+Extract the '*.tar.gz' file and change to bashbot directory: ```tar -xzf *.tar.gz; cd telegram-bot-bash```,
+install bashbot: ```./bashbot.sh init``` and enter your bot token when asked. All other questions can be answered
+by hitting the \<Return\> key.
+
+Thats all, now you can start your bot with ```./bashbot.sh start``` and send him messages:
+```
+/start
+
+You are Botadmin
+*Available commands*:
+*• /start*: _Start bot and get this message_.
+*• /help*: _Get this message_.
+*• /info*: _Get shorter info message about this bot_....
+
+/info
+
+his is bashbot, the Telegram bot written entirely in bash.
+It features background tasks and interactive chats, and can serve as an interface for CLI programs.
+```
+For more Information on how to install, customize and use your new bot, read the [Documentation](#Documentation)
+
+----
 
 ## Security Considerations
 Running a Telegram Bot means it is connected to the public and you never know whats send to your Bot.
diff --git a/db.json b/db.json
new file mode 100644
index 0000000..a3df871
--- /dev/null
+++ b/db.json
@@ -0,0 +1,31 @@
+{
+  "usage": 
+     {
+	"ok":true,
+	"url":"https://my-json-server.typicode.com/topkecleon/telegram-bot-bash/",
+	"description":"Testing of JSON reponses for github.com/topkecleon/telegram-bot-bash"
+    } ,
+  "false": 
+     {
+	"ok":false,
+	"error_code":404,
+	"description":"Not Found"
+    } ,
+  "ok": 
+    {
+	"ok":true,
+	"description":"Ttest for ok"
+    } ,
+  "getMe": 
+    {
+	"ok":true,
+	"result":
+	{
+		"id":123456789,
+		"is_bot":true,
+		"first_name":"bashbot",
+		"username":"TestBotBash"
+	}
+    }
+  
+}
diff --git a/doc/6_reference.md b/doc/6_reference.md
index 69cac30..91ab864 100644
--- a/doc/6_reference.md
+++ b/doc/6_reference.md
@@ -101,6 +101,13 @@ The main use case for send_message is to process the output of interactive chats
 ##### send_file
 send_file allows you to send different type's of files, e.g. photos, stickers, audio, media, etc. [see more](https://core.telegram.org/bots/api#sending-files)
 
+Starting with version 0.80 send_file implements the following rules:
+
+- file names must not contain ".."
+- file names must not start with "."
+- file names not starting wit "/" are realtive to $TMPDIR, e.g. ./data-bot-bash
+- abolute filenames must match $FILE_REGEX
+
 *usage:* send_file "${CHAT[ID]}" "file" "caption"
 
 *example:*