updates doc software

doc/source/source_rst/software/installation.rst

@@ -3,13 +3,11 @@ Getting started
 
 Step 1: Set up the Raspberry Pi
 ===============================
-First, install an operating system on the Raspberry Pi by following the official instructions`_.
-.. _instructions : https://www.raspberrypi.com/documentation/computers/getting-started.html#install-an-operating-system
+First, install an operating system on the Raspberry Pi by following the official `instructions <https://www.raspberrypi.com/documentation/computers/getting-started.html#install-an-operating-system>`
 
 Then connect to the Raspberry Pi either via ssh or using an external monitor.
 
-For all questions related to Raspberry Pi operations, please refer to the official d`ocumentation`_.
-.. _documentation: https://www.raspberrypi.com/documentation/
+For all questions related to Raspberry Pi operations, please refer to the official `ocumentation <https://www.raspberrypi.com/documentation/>`
 
 Step 2: Clone the OhmPi project
 ===============================

doc/source/source_rst/software/operations/interfaces.rst

@@ -101,7 +101,7 @@ To access the Python API, make sure that the PYTHONPATH has been correctly confi
 
 For detailed usage, please see the Python API or look at the examples.
 
- .. _IoT-interface:
+.. _IoT-interface:
 IoT interface
 =============