diff --git a/doc/0_install.md b/doc/0_install.md
index 24bf8b6..b5010ab 100644
--- a/doc/0_install.md
+++ b/doc/0_install.md
@@ -15,7 +15,7 @@ Now your Bot is ready to start ...
 
 **If you are new to Bot development read [Bots: An introduction for developers](https://core.telegram.org/bots)**
 
-### Install from Github
+### Install from github
 
 As an alternative to download the zip files, you can clone the github repository to get the latest improvements/fixes.
 
@@ -63,7 +63,7 @@ BSD/MacOS sed compatibility will result in a rewrite of all grep/sed commands wi
 see [BSD/MacOS vs. GNU sed](https://riptutorial.com/sed/topic/9436/bsd-macos-sed-vs--gnu-sed-vs--the-posix-sed-specification)
 to get an impression how different they are.
 
-If you are a sed guru and can convert the following examples to work correct with gnu and BSD sed, contact me.
+If you can convert the following examples to work correct with gnu and BSD sed, contact me.
 
 ```bash
   # easy start
@@ -131,5 +131,5 @@ The old format is supported for backward compatibility, but may fail for corner
 
 #### [Next Create Bot](1_firstbot.md)
 
-#### $$VERSION$$ v0.98-0-g5b5447e
+#### $$VERSION$$ v0.99-dev2-16-g50e661a
 
diff --git a/doc/1_firstbot.md b/doc/1_firstbot.md
index 9fd6d76..67faa9c 100644
--- a/doc/1_firstbot.md
+++ b/doc/1_firstbot.md
@@ -1,5 +1,5 @@
 #### [Home](../README.md)
-## Create a Telegram Bot with botfather
+## Create a Telegram Bot with Botfather
 **[BotFather is the one bot to rule them all](https://core.telegram.org/bots#3-how-do-i-create-a-bot). It will help you create new bots and change settings for existing ones.** [Commands known by Botfather](https://core.telegram.org/bots#generating-an-authorization-token)
 
 ### Creating a new Bot
@@ -9,7 +9,7 @@ text: `/newbot`
    If you don't know how to message by username, click the search
 field on your Telegram app and type `@botfather`, you should be able
 to initiate a conversation. Be careful not to send it to the wrong
-contact, because some users has similar usernames to `botfather`.
+contact, because there are users with a similar username.
 
    ![botfather initial conversation](http://i.imgur.com/aI26ixR.png)
 
@@ -65,5 +65,5 @@ group. This step is up to you actually.
 #### [Prev Installation](0_install.md)
 #### [Next Getting started](2_usage.md)
 
-#### $$VERSION$$ v0.98-0-g5b5447e
+#### $$VERSION$$ v0.99-dev2-16-g50e661a
 
diff --git a/doc/2_usage.md b/doc/2_usage.md
index 8899062..209ad0b 100644
--- a/doc/2_usage.md
+++ b/doc/2_usage.md
@@ -283,5 +283,5 @@ send_action "${CHAT[ID]}" "action"
 #### [Prev Create Bot](1_firstbot.md)
 #### [Next Advanced Usage](3_advanced.md)
 
-#### $$VERSION$$ v0.98-0-g5b5447e
+#### $$VERSION$$ v0.99-dev2-16-g50e661a
 
diff --git a/doc/3_advanced.md b/doc/3_advanced.md
index 3870d73..255c5fd 100644
--- a/doc/3_advanced.md
+++ b/doc/3_advanced.md
@@ -6,7 +6,6 @@ Bashbot offers functions to check what Telegram capabilities like 'chat admin' o
 
 ```bash
 # return true if user is admin/owner of the bot
-# -> botadmin is stored in file './botadmin'
 user_is_botadmin "user"  
 
 # return true if user is creator or admin of a chat
@@ -289,5 +288,5 @@ Note: If you disable automatic retry, se above, you disable also connection prob
 #### [Prev Getting started](2_usage.md)
 #### [Next Expert Use](4_expert.md)
 
-#### $$VERSION$$ v0.98-0-g5b5447e
+#### $$VERSION$$ v0.99-dev2-16-g50e661a