fix typos in the shell demo

README.md

@@ -83,7 +83,7 @@ FROM duckdb_extensions() WHERE loaded;
 ```
 Will show that h3, icu, parquet, quack and sqlite_scanner have been loaded.
 
-You can try the [Shell demo with loading of extensions](https://shell.duckdb.org/#queries=v0,%20%20%20-Excplicitly-load-extensions%0ALOAD-icu~%0A%0A%20%20%20-Or-have-them-autoloaded-when-using-relevant-functions-or-settings%0ADESCRIBE-FROM-read_parquet('https%3A%2F%2Fblobs.duckdb.org%2Fstations.parquet')~--%20%20-(this-autoloads-JSON)%0A%0A%20%20%20-Or-register-extensions%0AINSTALL-h3-FROM-community~%0AINSTALL-sqlite_scanner-FROM-'https%3A%2F%2Fextensions.duckdb.org'~%0AINSTALL-quack-FROM-'https%3A%2F%2Fcommunity%20extensions.duckdb.org'~%0A%0A%20%20%20-And-then-load-them%3A%0ALOAD-h3~%0ALOAD-sqlite_scanner~%0ALOAD-quack~,FROM-duckdb_extensions()-WHERE-loaded~) but this do require about 3.2 MB of compressed Wasm files to be transfered over the network (on first visit, caching might help).
+You can try the [Shell demo with loading of extensions](https://shell.duckdb.org/#queries=v0,%20%20%20-Explicitly-load-extensions%0ALOAD-icu~%0A%0A%20%20%20-Or-have-them-autoloaded-when-using-relevant-functions-or-settings%0ADESCRIBE-FROM-read_parquet('https%3A%2F%2Fblobs.duckdb.org%2Fstations.parquet')~--%20%20-(this-autoloads-parquet)%0A%0A%20%20%20-Or-register-extensions%0AINSTALL-h3-FROM-community~%0AINSTALL-sqlite_scanner-FROM-'https%3A%2F%2Fextensions.duckdb.org'~%0AINSTALL-quack-FROM-'https%3A%2F%2Fcommunity%20extensions.duckdb.org'~%0A%0A%20%20%20-And-then-load-them%3A%0ALOAD-h3~%0ALOAD-sqlite_scanner~%0ALOAD-quack~,FROM-duckdb_extensions()-WHERE-loaded~) but this do require about 3.2 MB of compressed Wasm files to be transfered over the network (on first visit, caching might help).
 
 Extension sizes will vary depending, among other things, on provided functionality or toolchain used.