fix capitalization

README.md

-# User documentation
-
-test
+# User Documentation
 
 This project contains IT4Innovations user documentation source.
 
@@ -15,7 +13,7 @@ $ source venv/bin/activate
 $ pip install -r requirements.txt
 ```
 
-### Package upgrade with pip
+### Package Upgrade With pip
 
 ```console
 $ pip list -o
@@ -43,7 +41,7 @@ Mellanox
 
 ## Mathematical Formulae
 
-### Formulas are made with:
+### Formulas Are Made With:
 
 * [https://facelessuser.github.io/pymdown-extensions/extensions/arithmatex/](https://facelessuser.github.io/pymdown-extensions/extensions/arithmatex/)
 * [https://www.mathjax.org/](https://www.mathjax.org/)