pre-commit / fix simple file trailing things

docs/CHANGELOG.md

@@ -121,7 +121,7 @@ ws_connect: connection closed: code 1000 reason Normal closure
 
 ## [8.0.6] - 2020-01-31
 
-(snake) add an option to disable answering pongs as response to pings, to test cobra client behavior with hanged connections 
+(snake) add an option to disable answering pongs as response to pings, to test cobra client behavior with hanged connections
 
 ## [8.0.5] - 2020-01-31
 

docs/build.md

@@ -47,12 +47,12 @@ vcpkg install ixwebsocket
 
 Conan is currently supported through a recipe in [Conan Center](https://github.com/conan-io/conan-center-index/tree/master/recipes/ixwebsocket) ([Bintray entry](https://bintray.com/conan/conan-center/ixwebsocket%3A_)).
 
-Package reference 
+Package reference
 
 * Conan 1.21.0 and up: `ixwebsocket/7.9.2`
 * Earlier versions: `ixwebsocket/7.9.2@_/_`
 
-Note that the version listed here might not be the latest one. See Bintray or the recipe itself for the latest version. If you're migrating from the previous, custom Bintray remote, note that the package reference _has_ to be lower-case.  
+Note that the version listed here might not be the latest one. See Bintray or the recipe itself for the latest version. If you're migrating from the previous, custom Bintray remote, note that the package reference _has_ to be lower-case.
 
 ### Docker
 

docs/design.md

@@ -73,5 +73,3 @@ Here is a simplistic diagram which explains how the code is structured in term o
 |                       |
 +-----------------------+
 ```
-
-

docs/usage.md

@@ -465,4 +465,3 @@ For a client, specifying `caFile` can be used if connecting to a server that use
 For a server, specifying `caFile` implies that:
 1. You require clients to present a certificate
 1. It must be signed by one of the trusted roots in the file
-