style: use CODE-OF-CONDUCT.rst, tests.txt and docs

Author: ycexiao

.flake8

@@ -6,7 +6,7 @@ exclude =
     __pycache__,
     build,
     dist,
-    doc/source/conf.py
+    docs/source/conf.py
 max-line-length = 79
 # Ignore some style 'errors' produced while formatting by 'black'
 # https://black.readthedocs.io/en/stable/guides/using_black_with_other_tools.html#labels-why-pycodestyle-warnings

.readthedocs.yaml

@@ -10,4 +10,4 @@ python:
     - requirements: requirements/docs.txt
 
 sphinx:
-  configuration: doc/source/conf.py
+  configuration: docs/source/conf.py

CODE_OF_CONDUCT.rst CODE-OF-CONDUCT.rstCODE_OF_CONDUCT.rst renamed to CODE-OF-CONDUCT.rst

@@ -48,7 +48,7 @@ The examples described below will go into detail about each of these points.
 
 ## Examples
 
-The following examples are contained in the _doc/examples/_ directory of the
+The following examples are contained in the _docs/examples/_ directory of the
 SrFit source distribution. They can be downloaded from
 http://dev.danse.us/packages/srfit_examples-alpha9.zip