Fix typo in method name

Author: tklauser

src/main.rs

@@ -239,7 +239,7 @@ fn main() {
                 .get_sysroot_src()
                 .expect("Couldn't find toolchain path, do you have `rustc` installed?");
             project
-                .exercies_to_json()
+                .exercises_to_json()
                 .expect("Couldn't parse rustlings exercises files");
 
             if project.crates.is_empty() {

src/project.rs

@@ -54,7 +54,7 @@ impl RustAnalyzerProject {
     /// Parse the exercises folder for .rs files, any matches will create
     /// a new `crate` in rust-project.json which allows rust-analyzer to
     /// treat it like a normal binary
-    pub fn exercies_to_json(&mut self) -> Result<(), Box<dyn Error>> {
+    pub fn exercises_to_json(&mut self) -> Result<(), Box<dyn Error>> {
         for e in glob("./exercises/**/*")? {
             let path = e?.to_string_lossy().to_string();
             self.path_to_json(path);