updated docs and bumped version to 1.1.1

README.md

doc/html_generated/benchmarks.html

doc/markdown/benchmarks.md

doctest/doctest.h

doctest/parts/doctest_fwd.h

...les/alternative_macros/test_output/alternative_macros.txt

examples/assertion_macros/test_output/assertion_macros.txt

...exe_with_static_libs/test_output/exe_with_static_libs.txt

examples/hello_world/test_output/hello_world.txt

...les/multi_file_example/test_output/multi_file_example.txt

..._doctest_options/test_output/removing_doctest_options.txt

examples/separate_headers/test_output/separate_headers.txt

examples/stringification/test_output/stringification.txt

examples/subcases_and_bdd/test_output/subcases_and_bdd.txt

...les/user_supplied_main/test_output/user_supplied_main.txt

scripts/code_coverage_source/test_output/abort_after.txt

scripts/code_coverage_source/test_output/count.txt

scripts/code_coverage_source/test_output/filter_1.txt

scripts/code_coverage_source/test_output/filter_2.txt

scripts/code_coverage_source/test_output/filter_3.txt