Docs seo (#312)

* [doc] added meta
* [doc] added project cross-link, google site verification

Sphinx
=====
* import from parent only if not on RTD

Testing
======
* set backend to Agg for pytest action on Windows.

.github/workflows/pytest.yml

@@ -43,6 +43,13 @@ jobs:
       - name: pip installs
         run: pip install -e .[test]
 
+      - name: setup matplotlib
+        if: startsWith(runner.os, 'Windows')
+        run: |
+            if not exist %userprofile%\.matplotlib\ ( mkdir %userprofile%\.matplotlib\ )
+            echo "backend: Agg" > %userprofile%\.matplotlib\matplotlibrc
+        shell: cmd
+
       - name: run pytest
         run: |
           pytest -n 2 --runslow tests/

doc/conf.py

@@ -34,6 +34,7 @@
     import weldx
 except Exception as ex:
     raise
+
 import weldx.visualization  # load visualization
 from weldx.asdf.constants import WELDX_TAG_BASE
 

doc/index.rst

@@ -1,6 +1,14 @@
+============================================================
 WelDX - data and quality standards for welding research data
 ============================================================
 
+.. meta::
+    :description lang=en: Scientific data format and Python API for welding research data. Setup your experiment and capture data in a single file.
+    :keywords: welding, weld, data format, archive, scientific data, experiment, visualization, GMAW, quality standard, objectivity, comparability, reproducibility, measurement chain
+
+.. meta::
+   :google-site-verification: YvWuHWCE9tERkKT7KQejAwHM2cJVSfDewd5IzGZxDsU
+
 Introduction
 ############
 Scientific welding data covers a wide range of physical domains and timescales and are measured using various different sensors.
@@ -12,6 +20,7 @@ The proposed file format will be developed with regards to current needs of the
 By using the file format objectivity, comparability and reproducibility across different experimental setups can be improved.
 
 The project is under active development by the `Welding Technology <https://www.bam.de/Navigation/EN/About-us/Organisation/Organisation-Chart/President/Department-9/Division-93/division93.html>`_ division at Bundesanstalt für Materialforschung und -prüfung (BAM).
+Visit the projects site at `BAM <https://www.bam.de/Content/EN/Projects/WelDX/weldx.html>`_.
 
 Python API
 ##########
@@ -48,7 +57,6 @@ Funding
 #######
 This research is funded by the Federal Ministry of Education and Research of Germany under project number 16QK12.
 
-
 .. toctree::
     :hidden:
     :maxdepth: 1