Fix NEWS typos in 1.2.0 (#778)

Fixes for 3 typos in the `NEWS.md` changelog from the 1.2.0 release.

Author: feinleib

NEWS.md

@@ -18,7 +18,7 @@
 
 * Redacted headers are no longer serialized to disk. This is important since it 
   makes it harder to accidentally leak secrets to files on disk, but comes at a 
-  cost: you can longer perform such requests that have been saved and reloaded 
+  cost: you can no longer perform such requests that have been saved and reloaded 
   (#721).
 
 * URL construction is now powered by `curl::curl_modify_url()`, and hence now 
@@ -36,9 +36,9 @@
 * New `resp_timing()` exposes timing information about the request measured 
   by libcurl (@arcresu, #725).
 
-## Minor improvements bug fixues
+## Minor improvements and bug fixes
 
-* Functions that capture interrutps (like `req_perform_parallel()` and friends) 
+* Functions that capture interrupts (like `req_perform_parallel()` and friends) 
   are now easier to escape if they're called inside a loop: you can press 
   Ctrl + C twice to guarantee an exit (#1810).