Merge branch 'req-jinja2' into 'master'

Add Jinja2 & nbformat to requirements

See merge request detectors/pycalibration!334

requirements.txt

@@ -15,6 +15,7 @@ ipyparallel == 6.2.4
 ipykernel == 5.1.4
 ipython == 7.12.0
 ipython_genutils == 0.2.0
+Jinja2 == 2.11.2
 jupyter == 1.0.0
 jupyter_client == 5.3.4
 jupyter_console == 6.1.0
@@ -23,6 +24,7 @@ karabo_data == 0.7.0
 lxml == 4.5.0
 metadata_client == 3.0.5
 nbconvert == 5.6.1
+nbformat == 5.0.7
 prettytable == 0.7.2
 pypandoc == 1.4
 python-dateutil == 2.8.1