More release notes fixing

Author: aaltat

docs/PythonLibCore-2.2.0.rst

@@ -28,7 +28,7 @@ to install the latest available release or use
 to install exactly this version. Alternatively you can download the source
 distribution from PyPI_ and install it manually.
 
-SeleniumLibrary 2.2.0 was released on Friday January 1, 2021.
+Python Library Core 2.2.0 was released on Friday January 1, 2021.
 
 .. _PythonLibCore: https://github.com/robotframework/PythonLibCore
 .. _Robot Framework: http://robotframework.org

docs/PythonLibCore-2.2.1.rst

@@ -28,7 +28,7 @@ to install the latest available release or use
 to install exactly this version. Alternatively you can download the source
 distribution from PyPI_ and install it manually.
 
-SeleniumLibrary 2.2.1 was released on Saturday January 2, 2021.
+Python Library Core 2.2.1 was released on Saturday January 2, 2021.
 
 .. _PythonLibCore: https://github.com/robotframework/PythonLibCore
 .. _Robot Framework: http://robotframework.org

tasks.py

@@ -39,7 +39,7 @@
 to install exactly this version. Alternatively you can download the source
 distribution from PyPI_ and install it manually.
 
-SeleniumLibrary {version} was released on {date}.
+Python Library Core {version} was released on {date}.
 
 .. _PythonLibCore: https://github.com/robotframework/PythonLibCore
 .. _Robot Framework: http://robotframework.org