add /docs directory and initial versions of (doc) files in it.

I've stubbed out each file for this commit. I need to go in and write the main
content for them all (apart from sql-statements.org). I was originally going to
put a breakdown of what each (Python) script does in the wiki but I changed my
mind. The wiki, used by Gitea, doesn't allow .org files and I quite like the
option to run code in any of the (doc) files if needed (using org-babbel).

I need to update README.org to reflect this change.

docs/dailies-overlayed.org

@@ -0,0 +1,21 @@
+* Overview of =dailies-overlayed.py= Script
+
+I have assumed you have ran ~./separator.sh~ and ~./totalilator.sh~, created a
+virtual-environment (venv) (~python3 -m venv venv~) and installed the dependencies
+(via ~pip -r install requirements.txt~). See the project's [[file:../README.org][README]] for more
+information on setting the repository up.
+
+#+begin_src shell
+  cd <PATH TO RITHERDON-CHARTS>
+  # Activate the virtual-environment if you haven't...
+  source venv/bin/activate
+
+  # Run the script...
+  python dailies-overlayed.py
+#+end_src
+
+* What the Script Does
+
+This needs to be written...
+
+

docs/dailies-side-by-side.org

@@ -0,0 +1,20 @@
+* Overview of =dailies-side-by-side.py= Script
+
+I have assumed you have ran ~./separator.sh~ and ~./totalilator.sh~, created a
+virtual-environment (venv) (~python3 -m venv venv~) and installed the dependencies
+(via ~pip -r install requirements.txt~). See the project's [[file:../README.org][README]] for more
+information on setting the repository up.
+
+#+begin_src shell
+  cd <PATH TO RITHERDON-CHARTS>
+  # Activate the virtual-environment if you haven't...
+  source venv/bin/activate
+
+  # Run the script...
+  python dailies-side-by-side.py
+#+end_src
+
+* What the Script Does
+
+This needs to be written...
+

docs/daily-breakdowns.org

@@ -0,0 +1,19 @@
+* Overview of =daily-breakdowns.py= Script
+
+I have assumed you have ran ~./separator.sh~ and ~./totalilator.sh~, created a
+virtual-environment (venv) (~python3 -m venv venv~) and installed the dependencies
+(via ~pip -r install requirements.txt~). See the project's [[file:../README.org][README]] for more
+information on setting the repository up.
+
+#+begin_src shell
+  cd <PATH TO RITHERDON-CHARTS>
+  # Activate the virtual-environment if you haven't...
+  source venv/bin/activate
+
+  # Run the script...
+  python daily-breakdowns.py
+#+end_src
+
+* What the Script Does
+
+This needs to be written...

docs/day-to-day-comparisons.org

@@ -0,0 +1,19 @@
+* Overview of =day-to-day-comparisons.py= Script
+
+I have assumed you have ran ~./separator.sh~ and ~./totalilator.sh~, created a
+virtual-environment (venv) (~python3 -m venv venv~) and installed the dependencies
+(via ~pip -r install requirements.txt~). See the project's [[file:../README.org][README]] for more
+information on setting the repository up.
+
+#+begin_src shell
+  cd <PATH TO RITHERDON-CHARTS>
+  # Activate the virtual-environment if you haven't...
+  source venv/bin/activate
+
+  # Run the script...
+  python day-to-day-comparisons.py
+#+end_src
+
+* What the Script Does
+
+This needs to be written...

docs/lm1-hourly-totals.org

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+* Overview of =lm1-hourly-totals.py= and =lm2-hourly-totals.py= Scripts
+
+I have assumed you have ran ~./separator.sh~ and ~./totalilator.sh~, created a
+virtual-environment (venv) (~python3 -m venv venv~) and installed the dependencies
+(via ~pip -r install requirements.txt~). See the project's [[file:../README.org][README]] for more
+information on setting the repository up.
+
+#+begin_src shell
+  cd <PATH TO RITHERDON-CHARTS>
+  # Activate the virtual-environment if you haven't...
+  source venv/bin/activate
+
+  # Run the script for generating the chart for Light Meter 1...
+  python lm1-hourly-totals.py
+
+    # Run the script for generating the chart for Light Meter 2...
+  python lm2-hourly-totals.py
+#+end_src
+
+* What the Script Does
+
+This needs to be written...
+
+
+

docs/sql-statements.org

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+* Overview of =sql-statements.sql=
+
+This is an artefact of the project's origins. I needed to export the data from
+the database before I could work with said data (more context provided in
+[[file:../README.org][README]]). You /should/ never need or have the means to run this script. I have
+added it to this repository as a backup more than anything else.
+
+If you open =sql-statements.sql= you will notice I used specific dates when
+selecting the data to export. This is because the database contained data from
+outside the exhibition's run-time and was not needed from this particular
+mini-project. For the sake of completeness, the exhibition's run-time was from
+the 13^th June 2021 to 1^st August and I used a SQLite3 database to store the
+data.