Fix typo's in readme (FAForever#3663)

Fixes a few typo's in the readme and improves the English section on working with replays.

README-russian.md

@@ -52,4 +52,4 @@ Forged Alliance Forever — это [проект](https://github.com/FAForever)
 Помощь сообществу
 ------------
 
-Есть инструкции на [английском](setup/readme.md) и [русском](setup/readme-russian.md) языках, которые помогут настроить среду разработки. Пожалуйста, ознакомьтесь с [правилами помощи сообществу](CONTRIBUTING.md) и [правилами перевода](loc/guidelines.md) перед тем, как делать ваш первый PR.
+Есть инструкции на [английском](setup/setup-english.md) и [русском](setup/setup-russian.md) языках, которые помогут настроить среду разработки. Пожалуйста, ознакомьтесь с [правилами помощи сообществу](CONTRIBUTING.md) и [правилами перевода](loc/guidelines.md) перед тем, как делать ваш первый PR.

README.md

@@ -48,7 +48,7 @@ Repositories that are directly related to the game:
 Changelog
 ---------
 
-Here is the complete [changelog](changelog.md). There is an [alternative changelog](http://patchnotes.faforever.com/) particularly for balance patches in a user-friendly. 
+Here is the complete [changelog](changelog.md). There is an [alternative changelog](http://patchnotes.faforever.com/) for balance patches in a user-friendly format. 
 
 Contributing
 ------------

setup/setup-english.md

@@ -109,7 +109,7 @@ The game version depends on the game type. Checkout the repository to the correc
  - `FAF Beta`: `deploy/fafbeta`
  - `FAF Develop`: `deploy/fafdevelop`
 
-You can find the replay by starting it with the client once and immediately closing it. The replay is stored in the cache of the client:
+Unlike the `.fafreplay` files you can get from and view with the faf client, the base game which you will run to test and debug only recognizes the `.scfareplay` extension for replays. To convert a `.fafreplay` to the `.scfareplay` extension you can start the replay with the faf client and immediately close it. The client will have created a temporary  version of your replay with the `.scfareplay` format in the cache folder of the client:
  - `C:/ProgramData/FAForever/cache/temp.scfareplay`
 
 Copy that replay to the replays folder of the game: