diff --git a/README.md b/README.md
index eb5e332..f30d59d 100644
--- a/README.md
+++ b/README.md
@@ -4,20 +4,15 @@ TechPack, a Mining, Crafting, & Farming Modpack for Minetest.
 
 TechPack is a collection of following Mods:
 
-* tubelib,  
-  a Mod for item exchange via lumber tubes and wireless message communication between nodes.  
+* tubelib, a Mod for item exchange via lumber tubes and wireless message communication between nodes.
   ![README.md](https://github.com/joe7575/techpack/blob/master/tubelib/README.md)
-* tubelib_addons1,  
-  a Tubelib extension with mining, farming, and crafting nodes  
+* tubelib_addons1, a Tubelib extension with mining, farming, and crafting nodes
   ![README.md](https://github.com/joe7575/techpack/blob/master/tubelib_addons1/README.md)
-* tubelib_addons2,  
-  a Tubelib extension with control nodes  
+* tubelib_addons2, a Tubelib extension with control nodes
   ![README.md](https://github.com/joe7575/techpack/blob/master/tubelib_addons2/README.md)
-* gravelsieve,  
-  a Mod to sieve ores from gravel.
+* gravelsieve, a Mod to sieve ores from gravel.
   ![README.md](https://github.com/joe7575/techpack/blob/master/gravelsieve/README.md)
-* smartline,  
-  a Mod with small and smart sensors, actors and controllers.
+* smartline, a Mod with small and smart sensors, actors and controllers.
   ![README.md](https://github.com/joe7575/techpack/blob/master/smartline/README.md)
 
 
diff --git a/tubelib/api.md b/tubelib/api.md
index 7322bbc..7abac5a 100644
--- a/tubelib/api.md
+++ b/tubelib/api.md
@@ -279,7 +279,7 @@ and as templates for own projects:
 ## 6. Further information
 
 The complete functionality is implemented in the file 
-![command.lua](https://github.com/joe7575/Minetest-Tubelib/blob/master/command.lua). 
+![command.lua](https://github.com/joe7575/techpack/blob/master/tubelib/command.lua). 
 This file has further helper functions and is recommended for deeper study.
 
 ## 7. History
diff --git a/tubelib/manual.md b/tubelib/manual.md
index 68328a0..5f25eb5 100644
--- a/tubelib/manual.md
+++ b/tubelib/manual.md
@@ -2,11 +2,9 @@
 
 ## Hints for Admins and Players
 
-Tubelib is little useful for itself, it makes only sense with extensions such as:  
-- ![tubelib_addons1](https://github.com/joe7575/tubelib_addons1) with farming nodes like Harvester, Quarry, Grinder, Autocrafter, Fermenter and Reformer.
-- ![tubelib_addons2](https://github.com/joe7575/tubelib_addons2) with control task nodes like Timer, Sequencer, Repeater, Gate, Door, Access Lock and Color Lamp.
+Tubelib is little useful for itself, it makes only sense with izs extensions.
 
-However Tubelib provides the following basic nodes:
+However, Tubelib provides the following basic nodes:
 
 ### Tubes
 Tubes allow the item exchange between two nodes. Tube forks are not possible. You have to use chests