Rename remaining occurences of SRML to FRAME (#4932)

* rename remaining SRML occurences to FRAME

* Some module -> pallet

* remove out of date url

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
Co-authored-by: Cecile Tonglet <cecile.tonglet@cecton.com>

substrate/frame/session/src/historical.rs

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
 
-//! An opt-in utility for tracking historical sessions in SRML-session.
+//! An opt-in utility for tracking historical sessions in FRAME-session.
 //!
 //! This is generally useful when implementing blockchains that require accountable
 //! safety where validators from some amount f prior sessions must remain slashable.

substrate/frame/session/src/lib.rs

@@ -80,7 +80,7 @@
 //!
 //! ## Usage
 //!
-//! ### Example from the SRML
+//! ### Example from the FRAME
 //!
 //! The [Staking pallet](../pallet_staking/index.html) uses the Session pallet to get the validator set.
 //!