Specify how to work with a specific branch if needed

Author: luseverin

doc/guide/Guide_Euler.ipynb

@@ -121,7 +121,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "### 4. Install climada\n",
+    "### 4. Install Climada\n",
     "\n",
     "There are two options. Either install from the downloaded repository (option A), or use a particular released version (option B).\n",
     "\n",
@@ -132,6 +132,7 @@
     "cd climada_python\n",
     "pip install -e .\n",
     "```\n",
+    "If you need to work with a specific branch of Climada, you can do so by checking out to the target branch `your_branch` by running `git checkout your_branch` after having cloned the Climada repository and before running `pip install -e .`.\n",
     "\n",
     "#### option B\n",
     "\n",
@@ -201,7 +202,6 @@
     "cd /cluster/project/climate/$USER  # or wherever you plan to download the repository\n",
     "git clone https://github.com/CLIMADA-project/climada_petals.git  # unless this has been done before\n",
     "cd climada_petals\n",
-    "git checkout develop\n",
     "pip install -e .\n",
     "```"
    ]