fix two typos in comments

src/or/microdesc.c

@@ -840,7 +840,7 @@ microdesc_list_missing_digest256(networkstatus_t *ns, microdesc_cache_t *cache,
 /** Launch download requests for microdescriptors as appropriate.
  *
  * Specifically, we should launch download requests if we are configured to
- * download mirodescriptors, and there are some microdescriptors listed the
+ * download mirodescriptors, and there are some microdescriptors listed in the
  * current microdesc consensus that we don't have, and either we never asked
  * for them, or we failed to download them but we're willing to retry.
  */

src/or/routerlist.c

@@ -4452,7 +4452,7 @@ clear_dir_servers(void)
 /** For every current directory connection whose purpose is <b>purpose</b>,
  * and where the resource being downloaded begins with <b>prefix</b>, split
  * rest of the resource into base16 fingerprints (or base64 fingerprints if
- * purpose==DIR_PURPPOSE_FETCH_MICRODESC), decode them, and set the
+ * purpose==DIR_PURPOSE_FETCH_MICRODESC), decode them, and set the
  * corresponding elements of <b>result</b> to a nonzero value.
  */
 static void