Appease the linter

Hey I haven't even touched those things!

CONTRIBUTING.md

@@ -129,8 +129,8 @@ Things we probably won't accept
 * Similarly, anything which adds an external dependency. We aim to keep
   dependencies minimal for ease of initial installation.
 * New backends. You can implement new backends via the Idris 2 API - and indeed
-  several people have. The back ends in this repository are limited to those
-  we are able to commit to maintaining.
+  several people have. The backends in this repository are limited to those we
+  are able to commit to maintaining.
 
 Other possible contributions
 ----------------------------

README.md

@@ -18,9 +18,9 @@ is often one of `scheme`, `chezscheme` or `chezscheme9.5` (depending on the
 version). On a modern desktop machine, this process (including tests)
 should take less than 5 minutes.
 
-Idris 2 is mostly backwards compatible with Idris 1, with some minor
-exceptions. The most notable user visible differences, which might cause Idris
-1 programs to fail to type check, are:
+Idris 2 is mostly backward compatible with Idris 1, with some minor exceptions.
+The most notable user visible differences, which might cause Idris 1 programs
+to fail to type check, are:
 
 + Unbound implicit arguments are always erased, so it is a type error to
   attempt to pattern match on one.
@@ -80,9 +80,9 @@ language `TTImp`, which is essentially a desugared Idris, and is cleanly
 separated from the high level language which means it is potentially usable
 as a core language for other high level syntaxes.
 
-Javascript
+JavaScript
 ----------
-The javascript codegen uses the new BigInt, hence nodejs 10.4 or higher is required.
+The JavaScript codegen uses the new BigInt, hence Node.js 10.4 or higher is required.
 
 Editor Plugins
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