Fix typos

documentation/how_to_create_an_openpgp_gnupg_key.markdown

@@ -38,7 +38,7 @@ Then generate the actual key:
 gpg --gen-key
 ```
 
-choose `(1) RSA and RSA (default)` as the kind of key and 4096 as the key size.  A key without expiry date is convenient (if a bit dangerous if you are the paranoid kind).  Give the name and e-mail as you would like them to appear in the key.  You may choose a comment (like `work` or `private`) or leave it empty.  Make sure you use a **good passphrase** (just make it long as in 20 characters or more, e.g. a few words you can remember).
+Choose `(1) RSA and RSA (default)` as the kind of key and 4096 as the key size.  A key without expiry date is convenient (if a bit dangerous if you are the paranoid kind).  Give the name and e-mail as you would like them to appear in the key.  You may choose a comment (like `work` or `private`) or leave it empty.  Make sure you use a **good passphrase** (just make it long as in 20 characters or more, e.g. a few words you can remember).
 
 This will generate a new key for you which is identified by an 16 digit key ID (something like `0123456789ABCDEF` if you chose the configuration recommended above).  Use this key ID below where it says <KEY-ID>.
 

documentation/ssh_keys.markdown

@@ -82,7 +82,7 @@ This will allow us to login using our key on all D-PHYS managed workstations and
 How to prefer the newer ed25519 key
 -----------------------------------
 
-If you have both `ed25519` and `RSA` keys, you probably want to prefer the faster `ed25519` key. By default ssh usees the `rsa` key first.
+If you have both `ed25519` and `RSA` keys, you probably want to prefer the faster `ed25519` key. By default ssh uses the `rsa` key first.
 
 To do that, add the following lines to your ssh config (`~/.ssh/config`):