Remove broken links

mini_book/installation.md

@@ -6,7 +6,7 @@ This course assumes that you have a working installation Python 3.8+.
 2. (On PCs without MIKE Zero) Install [VC redist](https://aka.ms/vs/16/release/vc_redist.x64.exe)
 3. Install matplotlib (`pip install matplotlib`)
 4. Install netCDF4 (`pip install netCDF4`)
-5. Install/upgrade ModelSkill (`pip install --upgrade fmskill`)
+5. Install/upgrade ModelSkill (`pip install --upgrade modelskill`)
 
 You will need to code in either VS Code or Jupyter Lab in this course.
 
@@ -28,7 +28,7 @@ print("NumPy: " + np.__version__)
 print("Pandas: " + pd.__version__)
 print("Matplotlib: " + mpl.__version__)
 print("MIKE IO: " + mikeio.__version__)
-print("FMSkill: " + fmskill.__version__)
+print("ModelSkill: " + modelskill.__version__)
 ```
 
 Can you say yes to the following questions? 
@@ -38,4 +38,4 @@ Can you say yes to the following questions?
 * My pandas version is 1.0 or greater
 * My matplotlib version is 3.2 or greater
 * My MIKE IO version is 1.0 or greater
-* My ModelSkill version is 0.4 or greater
+* My ModelSkill version is 1.0 or greater

mini_book/track_observations.ipynb

@@ -15,7 +15,7 @@
     "    - csv/excel\n",
     "* REST API\n",
     "\n",
-    "modelskill has the class [TrackObservation](https://dhi.github.io/fmskill/api.html#modelskill.observation.TrackObservation) for working with track observations. \n",
+    "modelskill has the class `TrackObservation` for working with track observations. \n",
     "\n",
     "Track observations consist of time-**position**-value (data) and *meta* data such as\n",
     "\n",