KNOWN_BUGS: Fix various typos

Closes #3112
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
diff --git a/docs/KNOWN_BUGS b/docs/KNOWN_BUGS
index c8d8722..1dcb79f 100644
--- a/docs/KNOWN_BUGS
+++ b/docs/KNOWN_BUGS
@@ -55,7 +55,7 @@
  6.2 MIT Kerberos for Windows build
  6.3 NTLM in system context uses wrong name
  6.4 Negotiate and Kerberos V5 need a fake user name
- 6.5 NTLM doen't support password with § character
+ 6.5 NTLM doesn't support password with § character
 
  7. FTP
  7.1 FTP without or slow 220 response
@@ -70,7 +70,7 @@
  7.10 Stick to same family over SOCKS proxy
 
  8. TELNET
- 8.1 TELNET and time limtiations don't work
+ 8.1 TELNET and time limitations don't work
  8.2 Microsoft telnet server
 
  9. SFTP and SCP
@@ -443,7 +443,7 @@
  new conn->bits.want_authentication which is set when any of the authentication
  options are set.
 
-6.5 NTLM doen't support password with § character
+6.5 NTLM doesn't support password with § character
 
  https://github.com/curl/curl/issues/2120
 
@@ -528,7 +528,7 @@
 7.9 Passive transfer tries only one IP address
 
  When doing FTP operations through a proxy at localhost, the reported spotted
- that curl only tried to connect once to the proxy, while it had mulitiple
+ that curl only tried to connect once to the proxy, while it had multiple
  addresses and a failed connect on one address should make it try the next.
 
  After switching to passive mode (EPSV), curl should try all IP addresses for
@@ -548,7 +548,7 @@
 
 8. TELNET
 
-8.1 TELNET and time limtiations don't work
+8.1 TELNET and time limitations don't work
 
  When using telnet, the time limitation options don't work.
  https://curl.haxx.se/bug/view.cgi?id=846
@@ -644,7 +644,7 @@
 
  When connecting to "localhost" on Windows, curl will resolve the name for
  both ipv4 and ipv6 and try to connect to both happy eyeballs-style. Something
- in there does however make it take 200 millseconds to succeed - which is the
+ in there does however make it take 200 milliseconds to succeed - which is the
  HAPPY_EYEBALLS_TIMEOUT define exactly. Lowering that define speeds up the
  connection, suggesting a problem in the HE handling.