DOC: unify the name PyCaosDB

README_SETUP.md

-# Getting started with pycaosdb #
+# Getting started with PyCaosDB #
 
 ## Installation ##
 
 ### Requirements ###
 
-Pycaosdb needs at least Python 3.6.  Additionally, the following packages are required (they will
+PyCaosDB needs at least Python 3.6.  Additionally, the following packages are required (they will
 typically be installed automatically):
 
 - `lxml`
@@ -32,7 +32,7 @@ installation](#generic-installation) section.
 
 #### Generic installation ####
 
-To install pycaosdb locally, use `pip3` (also called `pip` on some systems):
+To install PyCaosDB locally, use `pip3` (also called `pip` on some systems):
 
 ```sh
 pip3 install --user caosdb
@@ -52,7 +52,7 @@ pip3 install --user .
 ## Configuration ##
 
 The  configuration is done using `ini` configuration files.
-Pycaosdb tries to read from the inifile specified in the environment variable `PYCAOSDBINI` or
+PyCaosDB tries to read from the inifile specified in the environment variable `PYCAOSDBINI` or
 alternatively in `~/.pycaosdb.ini` upon import.  After that, the ini file `pycaosdb.ini` in the
 current working directory will be read additionally, if it exists.
 

src/doc/concepts.rst

 ========================
-The concepts of pycaosdb
+The concepts of PyCaosDB
 ========================
 
 - `Configuration <configuration>`

src/doc/configuration.md

-# Configuration of pycaosdb #
-The behavior of pycaosdb is defined via a configuration that is provided using configuration files.
-Pycaosdb tries to read from the inifile specified in the environment variable `PYCAOSDBINI` or
+# Configuration of PyCaosDB #
+The behavior of PyCaosDB is defined via a configuration that is provided using configuration files.
+PyCaosDB tries to read from the inifile specified in the environment variable `PYCAOSDBINI` or
 alternatively in `~/.pycaosdb.ini` upon import.  After that, the ini file `pycaosdb.ini` in the
 current working directory will be read additionally, if it exists.
 

src/doc/index.rst

 
-Welcome to pycaosdb's documentation!
+Welcome to PyCaosDB's documentation!
 ====================================
 
 .. toctree::
@@ -13,7 +13,7 @@ Welcome to pycaosdb's documentation!
       Configuration <configuration>
    API documentation<_apidoc/modules>
 
-This is the documentation for the Python client library for CaosDB, ``pycaosdb``.
+This is the documentation for the Python client library for CaosDB, ``PyCaosDB``.
 
 This documentation helps you to :doc:`get started<getting_started>`, explains the most important
 :doc:`concepts<concepts>` and offers a range of :doc:`tutorials<tutorials>`.