Added scripts description

ReadMe.md

@@ -84,6 +84,26 @@ Run the commands on _add repository_ and _add key_ from [labrobotica_how_to inst
 
 ``` sudo apt update && sudo apt install iri-iriutils-dev ```
 
+## Scripts
+
+The following scripts located in `./scripts/` are provided:
+
+* **add_lib_to_ld_config.sh**: To add the library path to ldconfig
+  - Usage:
+
+        ./add_lib_to_ld_config.sh -l <library> [-p]
+          -l  specify library name, for example iriutils"
+          -p  specify if installed from package. Optional."
+
+* **remove_lib_from_ld_config.sh**: To remove the library path from ldconfig
+  - Usage:
+
+        ./remove_lib_from_ld_config.sh -l <library> [-p]
+          -l  specify library name, for example iriutils"
+          -p  specify if installed from package. Optional."
+
+These scripts will be added to the PATH variable after installation.
+
 ## Disclaimer  
 
 Copyright (C) 2009-2018 Institut de Robòtica i Informàtica Industrial, CSIC-UPC.