Fix typos (#411)

Found via `codespell -L caf,etcp,alle,aks`

scripts/random_question.py

@@ -6,7 +6,7 @@ import os
 def main():
     """Reads through README.md for question/answer pairs and adds them to a
     list to randomly select from and quiz yourself.
-    Supports skipping quesitons with no documented answer with the -s flag
+    Supports skipping questions with no documented answer with the -s flag
     """
     parser = optparse.OptionParser()
     parser.add_option("-s", "--skip", action="store_true",

scripts/run_ci.sh

@@ -10,6 +10,6 @@ for file in ${MD_FILES[@]}; do
    python ${PROJECT_DIR}/tests/syntax_lint.py ${file} > /dev/null
 done
 
-echo "- Syntax lint tests on MD files passed sucessfully"
+echo "- Syntax lint tests on MD files passed successfully"
 
 flake8 --max-line-length=100 . && echo "- PEP8 Passed"