Spelling corrections

A number of spelling corrections as reported by the codespell (see: https://github.com/codespell-project/codespell) program and lists.

Some remarks:
- not considered are grammatical errors
- not considered are names in the code although there are a number that could be improved (like `childs` -> `children`)
- in the documentation it could be made clearer what are variables and what is running text (e.g. by placing variables in running text between backticks)
- some comments are in the French language, I think it would be better to have them in the English (United States version).

1 files changed, 1 insertions, 1 deletions

diff --git a/src/Persistent_cohomology/example/persistence_from_simple_simplex_tree.cpp b/src/Persistent_cohomology/example/persistence_from_simple_simplex_tree.cpp
index bffaabdd..3da6771e 100644
--- a/src/Persistent_cohomology/example/persistence_from_simple_simplex_tree.cpp
+++ b/src/Persistent_cohomology/example/persistence_from_simple_simplex_tree.cpp
@@ -95,7 +95,7 @@ int main(int argc, char * const argv[]) {
   SimplexVector = {9, 10, 11};
   st.insert_simplex_and_subfaces(SimplexVector, 0.3);
 
-  // ++ NINETH
+  // ++ NINTH
   std::clog << "   - INSERT (2,10,12)" << std::endl;
   SimplexVector = {2, 10, 12};
   st.insert_simplex_and_subfaces(SimplexVector, 0.3);