Remove .sol extension in repoV2 documentation

Author: manuelwedler

docs/4. repository/2. file-repositories.mdx

@@ -59,8 +59,8 @@ RepositoryV2 is the format where we normalize the file names with their keccak25
 contracts/full_match/1/0x801f3983c7baBF5E6ae192c84E1257844aDb4b4D/
 ├── metadata.json
 └── sources/
-    └── 0xa38ec4e151e4d397d05bdfb94e6e4eb91e57a9fca3bc1c655289a4adf31a58fa.sol
-    └── 0xea27a3e2c4179a064caf9fe9a198addd526fd1d1ea467ea474a0c069e6eac957.sol
+    └── 0xa38ec4e151e4d397d05bdfb94e6e4eb91e57a9fca3bc1c655289a4adf31a58fa
+    └── 0xea27a3e2c4179a064caf9fe9a198addd526fd1d1ea467ea474a0c069e6eac957
 ```
 
 The files are exactly the same so their IPFS hashes will not change, and you can look up the metadata file to find the original path-alike source unit names.