Fix inaccuracy in slice javadoc

eolib/src/main/java/dev/cirras/data/EoReader.java

@@ -78,7 +78,7 @@ public EoReader slice(int index) {
    * Creates a new {@code EoReader} whose input data is a shared subsequence of this reader's data.
    *
    * <p>The input data of the new reader will start at position {@code index} in this reader and
-   * contain all remaining data. The two reader's position and chunked reading mode will be
+   * contain up to {@code length} bytes. The two reader's position and chunked reading mode will be
    * independent.
    *
    * <p>The new reader's position will be zero, and its chunked reading mode will be false.