Update README.md, space between CORSIKA and 8

README.md

-# CORSIKA8 Framework for Particle Cascades in Astroparticle Physics**
+# CORSIKA 8 Framework for Particle Cascades in Astroparticle Physics**
 
 The purpose of CORSIKA is to simulate any particle cascades in
 astroparticle physics or astrophysical context. A lot of emphasis is
@@ -13,26 +13,26 @@ compiler optimization. Thus, the most fundamental configuration
 decision of the user must be performed at compile time. At run time
 only specific model parameters can still be changed.
 
-CORSIKA8 is released under the GPL3 license. This does not exclude
-that specific CORSIKA8 versions can be released for specific purposes
+CORSIKA 8 is released under the GPLv3 license. This does not exclude
+that specific CORSIKA 8 versions can be released for specific purposes
 under different licensing. See [license
 file](https://gitlab.ikp.kit.edu/AirShowerPhysics/corsika/blob/master/LICENSE)
 which is part of every release and the source code.
 
-If you use, or want to refer to, CORSIKA8 please cite ["Towards a Next
+If you use, or want to refer to, CORSIKA 8 please cite ["Towards a Next
 Generation of CORSIKA: A Framework for the Simulation of Particle
 Cascades in Astroparticle Physics", Comput.Softw.Big Sci. 3 (2019)
 2](https://doi.org/10.1007/s41781-018-0013-0). We kindly ask (and
 expect) any relevant improvement or addition to be offered or
-contributed to the main CORSIKA8 repository for the benefit of the
+contributed to the main CORSIKA 8 repository for the benefit of the
 whole community.
 
-When you plan to contribute to CORSIKA8 check the guidelines outlined here:
+When you plan to contribute to CORSIKA 8 check the guidelines outlined here:
 [coding
 guidelines](https://gitlab.ikp.kit.edu/AirShowerPhysics/corsika/blob/master/CONTRIBUTING.md). Code
 that fails the review by the CORSIKA author group must be improved
 before it can be merged in the official code base. After your code has
-been accepted and merged you become a contributor of the CORSIKA8
+been accepted and merged you become a contributor of the CORSIKA 8
 project and you should include yourself in the
 [AUTHORS](https://gitlab.ikp.kit.edu/AirShowerPhysics/corsika/blob/master/AUTHORS)
 file.
@@ -56,14 +56,14 @@ which are very useful also for us.
 
 ## Installation
 
-CORSIKA8 is tested regularly at least on gcc7.3.0 and clang-6.0.0.
+CORSIKA 8 is tested regularly at least on gcc7.3.0 and clang-6.0.0.
 Additional software prerequisites: eigen3, boost, cmake, g++, git. 
 On a bare Ubuntu 18.04, just add:
 ```
 sudo apt-get install libeigen3-dev libboost-dev cmake g++ git
 ```
 
-Follow these steps to download and install CORSIKA8-milestone2
+Follow these steps to download and install CORSIKA 8 milestone2
 ```
 git clone git@gitlab.ikp.kit.edu:AirShowerPhysics/corsika.git
 cd corsika