[DOCS] Fix Queries page rendering raw notebook JSON (#112)

The mkdocs-jupyter plugin built docs/queries.ipynb at the same URL as
queries.md, and with the i18n plugin the raw notebook JSON won the
collision on the published site. Move the notebook to notebooks/ and
drop the now-unused mkdocs-jupyter plugin so only queries.md is built.

Fixes #111

docs/requirements.txt

diff --git a/docs/requirements.txt b/docs/requirements.txt
index 65e0c0c..2dd10dd 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -7,7 +7,6 @@
 mkdocs-macros-plugin
 mkdocs-material
 mkdocs-static-i18n
-mkdocs-jupyter
 mkdocstrings[python]
 notebook
 nbconvert

mkdocs.yml

diff --git a/mkdocs.yml b/mkdocs.yml
index e8fe90c..37797fc 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -138,7 +138,6 @@
         custom_checkbox: true
    - pymdownx.tilde
 plugins:
-   - mkdocs-jupyter
    - search
    - macros
    - i18n:

notebooks/queries.ipynb

diff --git a/docs/queries.ipynb b/notebooks/queries.ipynb
similarity index 100%
rename from docs/queries.ipynb
rename to notebooks/queries.ipynb