Fixed some typos, courtesy of codespell

src/libcharon/encoding/generator.h

@@ -35,8 +35,8 @@ typedef struct generator_t generator_t;
  * method. The generated bytes are appended. After all payloads are added,
  * the write_to_chunk method writes out all generated data since
  * the creation of the generator.
- * The generater uses a set of encoding rules, which it can get from
- * the supplied payload. With this rules, the generater can generate
+ * The generator uses a set of encoding rules, which it can get from
+ * the supplied payload. With this rules, the generator can generate
  * the payload and all substructures automatically.
  */
 struct generator_t {