some typos corrected in the doc

src/main/java/complexityparser/Model.java

src/main/java/complexityparser/tos/TOS.java

src/main/java/complexityparser/tos/blocks/Block.java

src/main/java/complexityparser/types/FOTier.java

src/main/java/complexityparser/types/Tier.java

src/main/java/view/EditorView.java