Fix test and typos in docs

Author: Heliozoa

CONTRIBUTING.md

@@ -24,13 +24,13 @@ Install [.NET 6.0](https://dotnet.microsoft.com/download).
 
 Install [check](https://libcheck.github.io/check/) (works with at least 0.14 and 0.15), [valgrind](https://valgrind.org/) and `libsubunit0` (or equivalent for your distribution).
 
-Install [R](https://www.r-project.org/), [devtools](https://devtools.r-lib.org/) by running either `sudo apt install r-cran-devtools` or `R -e 'install.packages("devtools", repos="http://cran.r-project.org"")'` and [tmc-r-tester](https://github.com/testmycode/tmc-rstudio) by running `R -e 'devtools::install_github("testmycode/tmc-r-tester/tmcRtestrunner", build = FALSE)'`. You can set the `R_LIBS_USER` environment variable to control where R packages get installed, for example by setting `export R_LIBS_USER="~/.R"` in your `.bashrc`. If you install `devtools` with the `R -e` command, it has several dependencies that need to be installed. For Ubuntu, they can be installed with
+Install [R](https://www.r-project.org/), [devtools](https://devtools.r-lib.org/) by running either `sudo apt install r-cran-devtools` or `R -e 'install.packages("devtools", repos="http://cran.r-project.org")'` and [tmc-r-tester](https://github.com/testmycode/tmc-rstudio) by running `R -e 'devtools::install_github("testmycode/tmc-r-tester/tmcRtestrunner", build = FALSE)'`. You can set the `R_LIBS_USER` environment variable to control where R packages get installed, for example by setting `export R_LIBS_USER="~/.R"` in your `.bashrc`. If you install `devtools` with the `R -e` command, it has several dependencies that need to be installed. For Ubuntu, they can be installed with
 
 ```bash
 sudo apt install libcurl-dev libxml2-dev libopenssl-dev gcc-c++ libharfbuzz-dev libfribidi-dev libfreetype6-dev libpng-dev libtiff5-dev libjpeg-dev
 ```
 
-With the dependencies instaled, the tests can be run with
+With the dependencies installed, the tests can be run with
 
 ```bash
 cargo test

crates/tmc-testmycode-client/src/client/api_v8.rs

@@ -2488,8 +2488,6 @@ mod test {
             .mock("POST", "/api/v8/core/exercises/0/submissions")
             .match_query(client_matcher())
             .match_body(Matcher::AllOf(vec![
-                Matcher::Regex("client_time".to_string()),
-                Matcher::Regex("client_nanotime".to_string()),
                 Matcher::Regex("submission\\[file\\]".to_string()),
                 Matcher::Regex("paste".to_string()),
                 Matcher::Regex("message_for_paste".to_string()),