README: fix markdown for algorithms table

Author: ziluvatar

README.md

@@ -343,9 +343,9 @@ HS512 | HMAC using SHA-512 hash algorithm
 RS256 | RSASSA-PKCS1-v1_5 using SHA-256 hash algorithm
 RS384 | RSASSA-PKCS1-v1_5 using SHA-384 hash algorithm
 RS512 | RSASSA-PKCS1-v1_5 using SHA-512 hash algorithm
-PS256 | RSASSA-PSS using SHA-256 hash algorithm (only node ^6.12.0 || >=8.0.0)
-PS384 | RSASSA-PSS using SHA-384 hash algorithm (only node ^6.12.0 || >=8.0.0)
-PS512 | RSASSA-PSS using SHA-512 hash algorithm (only node ^6.12.0 || >=8.0.0)
+PS256 | RSASSA-PSS using SHA-256 hash algorithm (only node ^6.12.0 OR >=8.0.0)
+PS384 | RSASSA-PSS using SHA-384 hash algorithm (only node ^6.12.0 OR >=8.0.0)
+PS512 | RSASSA-PSS using SHA-512 hash algorithm (only node ^6.12.0 OR >=8.0.0)
 ES256 | ECDSA using P-256 curve and SHA-256 hash algorithm
 ES384 | ECDSA using P-384 curve and SHA-384 hash algorithm
 ES512 | ECDSA using P-521 curve and SHA-512 hash algorithm